Tracktion - Tempo Change, Can you change tempo of project? Options

[Dadoo]

I've been playing with the Tracktion demo and have recorded a few little multitrack things. I recorded a simple 3 track piece with guitar (2 tracks) and vocals (1 track) that lasted a total of 12 bars (27 seconds). The default tempo is 120 bpm. Let's say I wanted to have it at 160 bpm. How do I accomplish this without affecting the key/pitch of the instrument and vocals? Is it possible with Tracktion? Is it possible with other multitrack recording software?

I did change the tempo but all it did was change the scale at the top of how many bars long the song was. Playing the song back was exactly the same tempo (120 bpm). I tried changing the tempo using the pitch/tempo button, but it also made the tracks higher in pitch, as well as faster. They were also out of sync.

Anyone with experience with this program that knows how to do this simply? Thanks!