Can I expense music subscriptions as required to provide music for teaching for my part time employment positions?

I teach group exercise at a few local gyms/studios and subcribe to Apple music and Spotify (ad free) to provide a better experience for members workouts, am I able to expense these monthly charges?

Self-employed

To claim this type of employment expense, you would need to have a signed T2200 from your employer saying that you were required to pay this expense for your work.