slurs and ties on voices that have crossed systems

Ok thanks, I read through the thread and see the issue.

On a related note, I noticed when using MU2 that the way in which voices are handled in systems could cause confusion especially in pieces that typically have unclear and overlapping voices (i.e. many modern piano pieces). For instance a 'blue' voice 1 from the upper system could be confused for the voice 1 of the lower system after having crossed over, as they are the same color. I found that this was very inconvenient in complex music with lots of system changes. As the 'voices' are not related to true contrapuntal voices in scores, it might be possible and convenient for the software to automatically assign voices when the musical line crosses systems.

So if I was say working in treble clef, inputing notes, and then crossed into the bass, the software would automatically switch me into the voice appropriate to the bass. This would keep the voices organized and no confusion could be had as to what system a voice belonged to. If this change were made it might also fix this current issue in MU3, as you'd never encounter the current situation. Of course you might find then that a strict limitation of 4 voices per system was not enough, but maybe you could add a 5th at some late date. Anyway just musing. I will wait for you solution. MU3 is pretty much impossible for all but the simplest piano scores until this is fixed.