# MARK HETZLER — Courses & Reviews | UW–Madison

[View on UW Courses](https://uwcourses.com/instructors/MARK_HETZLER--instructor_637a65d555e972135fc865bf)

## Dataset

### revision

e243353dcb7d79b7247ced91d69443ef4c2a6349

### repository

twangodev/uwcourses

### schema version

6

### importer version

7

### projection id

85abe9ff8837c2c5a134368dcc4cfc85eb723524b21ddeb3d2e953887d2f0c8f

### observed at

2026-09-07T15:55:43.033547+00:00

### built at

2026-09-11T07:45:51.576183+00:00

### courses

8951

### current instructors

5754

### limited

false

### terms

* 1272
* 1264
* 1262
* 1254
* 1252
* 1244
* 1242
* 1234
* 1232
* 1224
* 1222
* 1212
* 1204
* 1202
* 1194
* 1192
* 1184
* 1182
* 1174
* 1172
* 1164
* 1162
* 1154
* 1152
* 1144
* 1142
* 1134
* 1132
* 1124
* 1122
* 1114
* 1112
* 1104
* 1102
* 1094
* 1092
* 1084
* 1082
* 1074
* 1072

### term

1272

### departments

| subject   | count |
| --------- | ----- |
| AAE       | 90    |
| ABT       | 20    |
| ACCTIS    | 36    |
| ACTSCI    | 14    |
| AFAERO    | 10    |
| AFRICAN   | 87    |
| AFROAMER  | 71    |
| AGROECOL  | 21    |
| AMERIND   | 53    |
| ANAT\&PHY | 7     |
| ANATOMY   | 2     |
| ANESTHES  | 8     |
| ANSCI     | 57    |
| ANTHRO    | 95    |
| ART       | 125   |
| ARTED     | 10    |
| ARTHIST   | 121   |
| ASIALANG  | 129   |
| ASIAN     | 109   |
| ASIANAM   | 28    |
| ASTRON    | 38    |
| ATMOCN    | 69    |
| BIOCHEM   | 51    |
| BIOCORE   | 10    |
| BIOLOGY   | 14    |
| BIOMDSCI  | 18    |
| BME       | 66    |
| BMI       | 41    |
| BMOLCHEM  | 10    |
| BOTANY    | 69    |
| BSE       | 44    |
| C\&ESOC   | 73    |
| CBE       | 48    |
| CHEM      | 101   |
| CHICLA    | 52    |
| CIVENGR   | 133   |
| CLASSICS  | 47    |
| CNP       | 10    |
| CNSRSCI   | 50    |
| COMARTS   | 137   |
| COMPBIO   | 15    |
| COMPLIT   | 11    |
| COMPSCI   | 138   |
| COUNPSY   | 78    |
| CRB       | 19    |
| CS\&D     | 71    |
| CSCS      | 40    |
| CURRIC    | 193   |
| DANCE     | 93    |
| DERM      | 8     |
| DS        | 88    |
| DYSCI     | 35    |
| ECE       | 155   |
| ECON      | 145   |
| EDPOL     | 114   |
| EDPSYCH   | 97    |
| ELPA      | 70    |
| EMA       | 53    |
| EMERMED   | 17    |
| ENGL      | 206   |
| ENTOM     | 40    |
| ENVIRST   | 148   |
| EP        | 15    |
| EPD       | 67    |
| ESL       | 16    |
| F\&WECOL  | 60    |
| FAMMED    | 22    |
| FINANCE   | 50    |
| FOLKLORE  | 40    |
| FOODSCI   | 43    |
| FRENCH    | 63    |
| GEN\&WS   | 145   |
| GENBUS    | 72    |
| GENECSLR  | 17    |
| GENETICS  | 60    |
| GEOG      | 113   |
| GEOSCI    | 83    |
| GERMAN    | 82    |
| GLE       | 48    |
| GNS       | 38    |
| GREEK     | 27    |
| HDFS      | 41    |
| HEBR-BIB  | 13    |
| HEBR-MOD  | 10    |
| HISTORY   | 233   |
| HISTSCI   | 56    |
| HONCOL    | 13    |
| ILS       | 43    |
| INFOSYS   | 9     |
| INTEGART  | 7     |
| INTEGSCI  | 22    |
| INTER-AG  | 18    |
| INTER-HE  | 11    |
| INTER-LS  | 22    |
| INTEREGR  | 16    |
| INTLBUS   | 21    |
| INTLST    | 50    |
| ISYE      | 83    |
| ITALIAN   | 53    |
| JEWISH    | 56    |
| JOURN     | 88    |
| KINES     | 128   |
| LACIS     | 26    |
| LANDARC   | 61    |
| LATIN     | 24    |
| LAW       | 120   |
| LEGALST   | 48    |
| LINGUIS   | 35    |
| LIS       | 89    |
| LITTRANS  | 78    |
| LSC       | 52    |
| M\&ENVTOX | 7     |
| MARKETNG  | 62    |
| MATH      | 153   |
| MDGENET   | 8     |
| ME        | 130   |
| MEDHIST   | 43    |
| MEDICINE  | 60    |
| MEDIEVAL  | 32    |
| MEDPHYS   | 39    |
| MEDSC-M   | 29    |
| MEDSC-V   | 41    |
| MHR       | 68    |
| MICROBIO  | 45    |
| MILSCI    | 16    |
| MM\&I     | 22    |
| MOLBIOL   | 6     |
| MS\&E     | 59    |
| MUSIC     | 165   |
| MUSPERF   | 126   |
| NAVSCI    | 20    |
| NE        | 44    |
| NEURODPT  | 11    |
| NEUROL    | 7     |
| NEURSURG  | 4     |
| NTP       | 11    |
| NURSING   | 111   |
| NUTRSCI   | 65    |
| OBS\&GYN  | 18    |
| OCCTHER   | 39    |
| ONCOLOGY  | 14    |
| OPHTHALM  | 5     |
| OTM       | 43    |
| PATH      | 34    |
| PATH-BIO  | 29    |
| PEDIAT    | 26    |
| PHARMACY  | 31    |
| PHILOS    | 77    |
| PHMCOL-M  | 11    |
| PHMPRAC   | 45    |
| PHMSCI    | 60    |
| PHYASST   | 37    |
| PHYSICS   | 88    |
| PHYSIOL   | 3     |
| PHYTHER   | 37    |
| PLANTSCI  | 52    |
| PLPATH    | 35    |
| POLISCI   | 192   |
| POPHLTH   | 58    |
| PORTUG    | 33    |
| PSYCH     | 101   |
| PSYCHIAT  | 22    |
| PUBAFFR   | 54    |
| PUBLHLTH  | 23    |
| RADIOL    | 11    |
| REALEST   | 41    |
| RELIGST   | 90    |
| RHABMED   | 9     |
| RMI       | 24    |
| RP\&SE    | 102   |
| S\&APHM   | 17    |
| SCANDST   | 73    |
| SLAVIC    | 89    |
| SOC       | 149   |
| SOCWORK   | 87    |
| SOILSCI   | 46    |
| SPANISH   | 83    |
| SRMED     | 21    |
| STAT      | 94    |
| STDYABRD  | 52    |
| STS       | 8     |
| SURGERY   | 25    |
| SURGSCI   | 33    |
| THEATRE   | 91    |
| URBRPL    | 60    |
| UROLOGY   | 5     |
| ZOOLOGY   | 89    |

## instructor

### instructor uid

instructor\_637a65d555e972135fc865bf

### source

madgrades

### source instructor id

3922122

### identity basis

source\_id

### identity status

source\_identified

### name

MARK HETZLER

### first observed at

2026-09-06 23:14:58.172943+00:00

### last observed at

2026-09-07 15:55:43.033547+00:00

### ratings

#### review count

3

#### quality

2.33

#### difficulty

4

#### quality count

3

#### difficulty count

3

#### profile id

rmp:2002789

#### source url

<https://www.ratemyprofessors.com/professor/2002789>

#### match basis

exact\_name

#### observed at

2026-09-07 16:20:36.978964+00:00

#### courses

##### course 8628a3fabd77918653bca71f

###### review count

2

###### quality

2.5

###### difficulty

4.5

###### quality count

2

###### difficulty count

2

##### course a8df98d8511573954e202977

###### review count

1

###### quality

2

###### difficulty

3

###### quality count

1

###### difficulty count

1

#### bayesian quality

3.4862485074318217

#### prior mean

3.6596857835465957

#### prior weight

20

### grade statistics

#### gpa

3.981

#### graded

583

#### counts

* 570
* 6
* 6
* 0
* 1
* 0
* 0

#### sections

370

### current

false

### courses

None recorded.

### revision

e243353dcb7d79b7247ced91d69443ef4c2a6349

### instructor url

/instructors/MARK\_HETZLER--instructor\_637a65d555e972135fc865bf

## history

| term | course\_uid                      | course\_id  | title                            |
| ---- | -------------------------------- | ----------- | -------------------------------- |
| 1264 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1264 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1264 | course\_5b1b2b912ce97b4b9fee9dbc | MUSIC 999   | PHD DISS/DMA PROJECT             |
| 1264 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1264 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1264 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1264 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1264 | course\_2428941fb34ec9f801216c2c | MUSPERF 990 | MASTERS RECITAL                  |
| 1264 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1262 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1262 | course\_0342eb0fad4b03847dab9cc3 | MUSIC 540   | ADVANCED PEDAGOGY                |
| 1262 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1262 | course\_5b1b2b912ce97b4b9fee9dbc | MUSIC 999   | PHD DISS/DMA PROJECT             |
| 1262 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1262 | course\_e6b6c014f6277c4c47b9ea4d | MUSPERF 21  | BRASS FUNDAMENTALS               |
| 1262 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1262 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1262 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1262 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1254 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1254 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1254 | course\_ec0bdb01ba095e7e0f71c0db | MUSIC 798   | SEMINAR-INSTRUMENTAL LITERATURE  |
| 1254 | course\_5b1b2b912ce97b4b9fee9dbc | MUSIC 999   | PHD DISS/DMA PROJECT             |
| 1254 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1254 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1254 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1254 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1254 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1254 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1252 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1252 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1252 | course\_ec0bdb01ba095e7e0f71c0db | MUSIC 798   | SEMINAR-INSTRUMENTAL LITERATURE  |
| 1252 | course\_5b1b2b912ce97b4b9fee9dbc | MUSIC 999   | PHD DISS/DMA PROJECT             |
| 1252 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1252 | course\_e6b6c014f6277c4c47b9ea4d | MUSPERF 21  | BRASS FUNDAMENTALS               |
| 1252 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1252 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1252 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1252 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1252 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1244 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1244 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1244 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1244 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1244 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1244 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1244 | course\_2428941fb34ec9f801216c2c | MUSPERF 990 | MASTERS RECITAL                  |
| 1244 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1242 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1242 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1242 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1242 | course\_e6b6c014f6277c4c47b9ea4d | MUSPERF 21  | BRASS FUNDAMENTALS               |
| 1242 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1242 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1242 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1242 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1242 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1234 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1234 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1234 | course\_ec0bdb01ba095e7e0f71c0db | MUSIC 798   | SEMINAR-INSTRUMENTAL LITERATURE  |
| 1234 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1234 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1234 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1234 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1234 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1234 | course\_2428941fb34ec9f801216c2c | MUSPERF 990 | MASTERS RECITAL                  |
| 1234 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1232 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1232 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1232 | course\_ec0bdb01ba095e7e0f71c0db | MUSIC 798   | SEMINAR-INSTRUMENTAL LITERATURE  |
| 1232 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1232 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1232 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1232 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1232 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1232 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1224 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1224 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1224 | course\_ec0bdb01ba095e7e0f71c0db | MUSIC 798   | SEMINAR-INSTRUMENTAL LITERATURE  |
| 1224 | course\_54ab6e8e6655dcc21b2c1c4d | MUSIC 799   | INDEPENDENT WORK                 |
| 1224 | course\_5b1b2b912ce97b4b9fee9dbc | MUSIC 999   | PHD DISS/DMA PROJECT             |
| 1224 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1224 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1224 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1224 | course\_9daf3450f470632c3654c79c | MUSPERF 441 | ADVANCED JAZZ STUDIO INSTRUCTION |
| 1224 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1224 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |
| 1224 | course\_2428941fb34ec9f801216c2c | MUSPERF 990 | MASTERS RECITAL                  |
| 1224 | course\_2a2798432e36e821a5426cd2 | MUSPERF 999 | DMA RECITAL                      |
| 1222 | course\_27a5a29c82c315abcf4985a3 | MUSIC 267   | ENSEMBLE-BRASS                   |
| 1222 | course\_a8a84582d1027669d873e0a8 | MUSIC 567   | ADVANCED ENSEMBLE-BRASS          |
| 1222 | course\_ec0bdb01ba095e7e0f71c0db | MUSIC 798   | SEMINAR-INSTRUMENTAL LITERATURE  |
| 1222 | course\_5b1b2b912ce97b4b9fee9dbc | MUSIC 999   | PHD DISS/DMA PROJECT             |
| 1222 | course\_af54b48d3ae38fee9f784051 | MUSPERF 146 | MUSIC LESSONS FOR NON-MAJORS     |
| 1222 | course\_e6b6c014f6277c4c47b9ea4d | MUSPERF 21  | BRASS FUNDAMENTALS               |
| 1222 | course\_8628a3fabd77918653bca71f | MUSPERF 221 | ELEMENTARY/INTERMEDIATE TROMBONE |
| 1222 | course\_a8df98d8511573954e202977 | MUSPERF 421 | ADVANCED TROMBONE                |
| 1222 | course\_9daf3450f470632c3654c79c | MUSPERF 441 | ADVANCED JAZZ STUDIO INSTRUCTION |
| 1222 | course\_b6eeebb09d2e6f442c96f66a | MUSPERF 521 | MASTERS LEVEL-TROMBONE           |
| 1222 | course\_59000a38969e34c9b9bdbb79 | MUSPERF 721 | DOCTORAL LEVEL-TROMBONE          |

## timeline

| term | courses |
| ---- | ------- |
| 1072 | 7       |
| 1074 | 4       |
| 1082 | 5       |
| 1084 | 4       |
| 1092 | 8       |
| 1094 | 8       |
| 1102 | 10      |
| 1104 | 8       |
| 1112 | 8       |
| 1114 | 10      |
| 1122 | 7       |
| 1124 | 8       |
| 1132 | 8       |
| 1134 | 7       |
| 1142 | 9       |
| 1144 | 7       |
| 1152 | 9       |
| 1154 | 9       |
| 1162 | 8       |
| 1164 | 8       |
| 1172 | 9       |
| 1174 | 8       |
| 1182 | 6       |
| 1184 | 8       |
| 1192 | 5       |
| 1194 | 6       |
| 1202 | 8       |
| 1204 | 1       |
| 1212 | 7       |
| 1222 | 12      |
| 1224 | 13      |
| 1232 | 9       |
| 1234 | 10      |
| 1242 | 9       |
| 1244 | 8       |
| 1252 | 11      |
| 1254 | 10      |
| 1262 | 10      |
| 1264 | 9       |

## term

1272

## courses

None recorded.

## reviews

### items

```json
[
  {
    "observed_at": "2026-09-07 16:20:36.978964+00:00",
    "run_id": "20260907T155543-ce3781c4",
    "source_review_id": "UmF0aW5nLTMxNTUwMjAx",
    "source_instructor_id": "rmp:2002789",
    "instructor_name": "Mark Hetzler",
    "course_label": "MUSPERF221",
    "course_id": "MUSPERF 221",
    "course_uid": "course_8628a3fabd77918653bca71f",
    "review_date": "2019-04-08 17:58:08 +0000 UTC",
    "comment": "Hetzler is genuinely a nice guy, but he is super intense. I cried a few times and have feared a few of my lessons. He takes his work very seriously as any musician should, but if you can get through your first year, you should be solid. You never know what you will get walking into a lesson. Don't call him Mark, it's Professor Hetzler!",
    "source_url": "https://www.ratemyprofessors.com/professor/2002789",
    "quality_rating": 3,
    "difficulty_rating": 4
  },
  {
    "observed_at": "2026-09-07 16:20:36.978964+00:00",
    "run_id": "20260907T155543-ce3781c4",
    "source_review_id": "UmF0aW5nLTI5ODE4MDkx",
    "source_instructor_id": "rmp:2002789",
    "instructor_name": "Mark Hetzler",
    "course_label": "MUSPERF221",
    "course_id": "MUSPERF 221",
    "course_uid": "course_8628a3fabd77918653bca71f",
    "review_date": "2018-04-17 00:07:32 +0000 UTC",
    "comment": "Professor Hetzler was my trombone studio professor, and was definitely hired for his music skill, not because he is a good teacher or plays nice with others. He hated that I did marching band while also studying &quot;real music&quot; and could spend half of a music lesson just listing why I shouldn't do marching. I stopped pursuing music because of him.",
    "source_url": "https://www.ratemyprofessors.com/professor/2002789",
    "quality_rating": 2,
    "difficulty_rating": 5
  },
  {
    "observed_at": "2026-09-07 16:20:36.978964+00:00",
    "run_id": "20260907T155543-ce3781c4",
    "source_review_id": "UmF0aW5nLTI3NjA4MzEz",
    "source_instructor_id": "rmp:2002789",
    "instructor_name": "Mark Hetzler",
    "course_label": "MUSPERF421",
    "course_id": "MUSPERF 421",
    "course_uid": "course_a8df98d8511573954e202977",
    "review_date": "2016-12-22 23:05:42 +0000 UTC",
    "comment": "Mark is an interesting guy. While he often provides good feedback, he also cannot handle when someone disagrees with his assessment. He finds it disrespectful, and he expects you to take his criticism (which is often as personal as it is professional) and refuses to hear a contradictory views to his own with an open mind. Other times, he's great.",
    "source_url": "https://www.ratemyprofessors.com/professor/2002789",
    "quality_rating": 2,
    "difficulty_rating": 3
  }
]
```

### total

3

### page

1

### courses

| course\_uid                      | course\_id  |
| -------------------------------- | ----------- |
| course\_8628a3fabd77918653bca71f | MUSPERF 221 |
| course\_a8df98d8511573954e202977 | MUSPERF 421 |

### matched

true

## social Image

false