I guess I am lucky, I have everything in my memory, songs, chord progressions, arrangement, where my registrations for that song, etc. I think it may be a side effect of playing by ear, at least to me.

A twist to that, in the older days, late 70s, most instruments (Organs) did not have transpose functions, so, in top of accompanying a singer I never hear (The early days of Ixtapa, only 2 hotels), every week we had entertainers/shows coming to the hotel, well, many times the flights did not bring the band instruments, so, you can guess who had to fill in, yes, my Hammond X66 and me, had to do, with songs that I did not hear before ever or if I knew them, in some funky key...but that gives you experience, it made me sweat like crazy, and thankfully "winged".




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mdorantes
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mdorantes