Audio - Location: Music Room or Closet?

School:
A possible recording location is the school's music rooms in the music department. These areas are filled with music equipment and therefore could be an issue. However, they're reasonably sound proof and provide a relatively lo-echo location.
A major issue would be the fact that these music rooms typically have music lessons going on, either in other smaller rooms or in the major class rooms, in which case my recordings might disrupt those lessons (and I wouldn't be permitted to do that). Furthermore, these lessons would also disrupt my own audio and that would also be an issue.

One benefit is the fact that the location is on school grounds and therefore organising a recording session with my peers would be easier, in fact they're more likely to come during a common free than if I was to have them record at my house. I think that this is a great location to try organising some auditions to see if anyone would be ideal for narrating my video; the issue would be actually finding a time when no other classes are occurring and those auditioning were free.


Closet:
The idea to record in my closet comes from the YouTuber MatPat. His audio is extremely clear in his theory videos and for a time I believed that he recorded in a foamed studio but it has been confirmed that he records from his closet. The clothes essentially prevent the reverberations and allow for him to record extremely clear audio. I will have to record my audio on my phone as I don't have a microphone but this means that the recording from the closet will be too much of a hassle to record - since my phone is smaller than a high-budget microphone.