home office expense for professional pianist in Schedule C
I have a regular job and also a professional classical pianist (performing 10-12 concerts per year). I own a concert grand piano (7-foot giant musical instrument) and I rent a two-bedroom single family home (instead of an apartment) because the piano practices (2 - 3 hours per day) to prepare for the concert won't be acceptable to other tenants of the apartment building. Due to the size of the piano, it is located at the living room and I live alone with monthly rent of $3000.
My question is: Is it okay to claim portion of the home I rent as home office expense due to the fact that (1) If I don't do the performing gig, I can rent a much cheaper apartment (at $1500). (2) I need to practice 2 -3 hours every day exclusively to prepare for the concert? If I can claim it, should I use the footprint size of the piano as 100% business use or the 50% of the living room size (as I do stay at the living room when I am not practicing?
Thanks so much for your help.