HI Bandmoose,

First, we must understand fully what is actually happening when we invoke Tempo changes.

Band in a Box is based on MIDI and Audio sequencer technology.

There is a timeline inbolbed, where commands start at the beginning of a file and change as the file moves down that timeline. All commands of data are addressing a basic State Machine in whatever they do. The machine gets a command and it changes states accordingly. --And it dutifully waits until it receives the NEXT data command to change that state to something else.

In the case of the Tempo changes, if you hit stop, the State Machine is set for whatever Tempo command came at the beginning of the last bar where there was a Tempo change. It has no way of knowing that you perhaps backed up the timeline to another point where there is no Tempo command.

So when working with a song that has the multiple Tempos in it, the best thing to do is to alway start it playing from the beginning of the song.

Yeah, I know, but that's the deal.


--Mac