Help Choosing 3rd Reference

[dlange]

Hi everyone, so I have chosen 2 out of the 3 referees so far. One is a professor I was close with last year (also did very well in the class), and another is my volunteer supervisor who I also worked closely with. So that's 1 academic and 1 non-academic letter. For my 3rd referee, I have 2 choices:

1) Summer research supervisor -  managed to get a poster presentation at the end of the summer. He would most likely be focusing on my academic/research-related qualities.

2) High school music teacher - I've known her very closely from grade 9-12, and I was involved in 3 musical ensembles and also 2 other ECs with her in high school. She would most likely focus on my non-academic qualities.

Essentially, I have a choice of 1 academic + 2 non-academic, or 2 academic + 1 non-academic. What do you guys think would be a better option? I am leaning towards option #2, my music teacher, but I'm just worried that they may not like that I worked with her in high school only, and not at the undergraduate level.

[itsmemario]

How close are you with the research supervisor? Will this be some last minute generic letter or do you think he will make an effort to write a good letter? If you think he will write a good letter, I would go with this one. Take a look at the UofT clusters and CANMED roles to see if your 3 letters cover most of these. 

[dlange]

2 minutes ago, itsmemario said:

How close are you with the research supervisor? Will this be some last minute generic letter or do you think he will make an effort to write a good letter? If you think he will write a good letter, I would go with this one. Take a look at the UofT clusters and CANMED roles to see if your 3 letters cover most of these. 

Relatively, I am not that close to him (4 months, vs. 4 years for my music teacher). I asked another student from the lab and he said the supervisor asked him to "make a template" - he is a pretty busy supervisor so I'm not surprised. It's hard to say who would write the better one, I think both equally care about my future success. Objectively though, my music teacher has known me for quite a longer time.

Edit: I looked at the CanMEDs roles, and it really seemed like my professor and research supervisor would cover the same roles, whereas my music teacher covered some new roles.