What does "leadups and outs" mean in this quote?
The best way to approach learning how to play "Flight of the Bumblebee" is to work on memorizing bits of it at a time. A lot of the piece is essentially a main theme with leadups and outs of that theme, chromatically.
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, then these additions are the lead-ups and lead-outs respectively:__/‾‾‾‾\__
. You can learn more by reading the definition of lead-up (which is more common, at least in non-jargon contexts, than lead-out).