Can I "speed up" a patch
Is it possible to speed up a single patch in MainStage? What I mean is, I am for example required to play a harp glissando - an ascending scale of notes that is pre-programmed to the patches and is launched by pressing a single key. But it lasts too long; the glissando is supposed to fill one bar of the music (about 1-2 seconds), but it takes over 2 bars (4 secs). Is there a way to make the patch faster and take less time?
(I know I can lift the key at desired moment and the patch goes silent, but then it just breaks in the middle of the glissando and sounds stupid.)
MacBook Pro 13", macOS 10.14