Why would a PIANIST...

Why would Charlie Harper, a PIANIST, have a monotimbral synthesizer in his bedroom?

This makes NO SENSE!!

Pianists need and are used to MULTI-timbral sound at all times - he doesn't compose as a hobby or for fun, he needs multi-timbral sound for his JINGLE WORK.

This show depicts Charlie Harper as someone that definitely doesn't have any interest in actual composing of actual music, and even then, he'd have different synths, at least ACCOMPANYING that monotimbral one.

Roland-D50 is BI-timbral at best, and for all Charlie's intents and porpoises, it's monotimbral, and thus USELESS for his work, and certainly useless for a pianist (piano is as MULTI-timbral as it gets!)

Also, why have a real piano downstairs, and some old vintage monosynth in his bedroom? At least have a DIGITAL PIANO upstairs, if not a real one! Does Charlie prefer real instruments or digital ones or synths? Nothing makes sense when you think about it. What the HECK is that monotimbral (ok, BI-timbral) synth doing there?!

Charlie is rich, he can afford the best digital pianos available. But even if he was cheap when it comes to this stuff, a passable digital piano is still cheaper and more useful to him than that particular vintage synth.