I have heard music (let me recapture that) composed music in my head, ever since I can remember. Not in a quantity that requires medicine, but it seems to have been always with me. (sometimes in sub or near concious, sometimes concious and on occasion vivit and almost like a virtual fever)
In retrospect I think it was something I devised not to be lonely or bored. There was no problem because I kept this for myself as beeing something most private. I studied graphic design, photography, and video art. Only to discover that I was in a sense always composing, slowly adding dimensions to this personal understanding of composition.
Effords to put music to paper at an early age stranded because at the time what I heard in my head did not work on paper (I was still thinking to liniar and less abstract) , I now have learned that I don't hear seperate notes but I experience the tensions that the chords, the melodies or combinations cause in my brain. This makes it possible to imagine/compose music in a more liniar way again. (am I making sense?)
Like Lee's shorthand, this has become my internal shorthand. It certainly boosts remembering music or grasping an idiom. Now, the difficulty is to translate it back again to a written score (and in the process learn the rules).
Like johannhowitzer the clear motives, melodies, frases or whole compositions pop up in situations that require some other brain activity like commuting, doing fysical work but also during halfsleep.
This state of understanding the innerworks of this virtual composition wears off, for me resulting in numerous unfinished doodles for now, I don't care. My stamina is growing as is the length of the doodles :closedeyes:
There is an other problem. I believe there is the handicap that you can't listen to your composition clearly, because youre also listening to your composition knowing what you intent to do. This renders ME a littlle (lot?) deaf to my own effords.
I am now experimenting with singing to a tape recorder (poor thing!) to develop ideas.
It also forces me to think through the measures, because in my head I tend to skip everything obvious.