Math implemented in 929d7597b3 was incorrect, but also inconsistent
with previous behavior.
`SEQ_SPEED_STRETCH` should change length only when right handle is
moved. This is now documented in code.
Math implemented in 929d7597b3 was incorrect, but also inconsistent
with previous behavior.
`SEQ_SPEED_STRETCH` should change length only when right handle is
moved. This is now documented in code.