1. yes. Although I can get distracted when playing so it's harder to play the songs in my head. 2. I have a "movement map" of where and how I'd move to match

1. yes. Although I can get distracted when playing so it's harder to play the songs in my head. 2. I have a "movement map" of where and how I'd move to match the same, and sometimes even how muscles feel. But no I cannot picture "a person". But I can map where and how to move to avoid conflicting, if we were in the same space. (I did a lot of dance in the past). 3. no. Colours aren't there without a visual reference.