A cheap alternative is powertrax.
What do you mean by trim? If you want to cut an ending you need to edit the length of notes at the end.
I use powertrax.
Much the same as everyone else.
You can check ours out at, www.uq.net.au/whocares
3.11 still the best. I have been running powertrax 3.5 on stage 2 nights a week for the past 7 years and not had any trouble.
I use powertrax ver 3.5 on a laptop on stage and it has been working well for 7 years now. It has never failed using 3.11 on a 486 sl25.
Separate names with a comma.