You will have to rehash these to include Utility Tracks or have a Tracks menu on the main toolbar that can be accessed with Alt+ ????:

Muting Tracks
Alt+2 Mute all tracks.
Alt+3 Mute the Bass track.
Alt+4 Mute the Piano track.
Alt+5 Mute the Drums track.
Alt+6 Mute the Guitar track.
Alt+7 Mute the Strings track.
Alt+8 Mute the Melody track.
Alt+9 Mute the Soloist track.
Alt+0 Mute the Thru track.


Soloing Tracks
Alt+Shift+Z Solo the current track.
Alt+2 then Alt+3 Solo the Bass track.
Alt+2 then Alt+4 Solo the Piano track.
Alt+2 then Alt+5 Solo the Drums track.
Alt+2 then Alt+6 Solo the Guitar track.
Alt+2 then Alt+7 Solo the Strings track.
Alt+2 then Alt+8 Solo the Melody track.
Alt+2 then Alt+9 Solo the Soloist track.
Alt+2 then Alt+0 Solo the Thru track.


Selecting Tracks
Ctrl+F5 Switch to next track.
Ctrl+Shift+F5 Switch to previous track.
Ctrl+3 Select the Bass track.
Ctrl+4 Select the Piano track.
Ctrl+5 Select the Drums track.
Ctrl+6 Select the Guitar track.
Ctrl+7 Select the Strings track.
Ctrl+8 Select the Melody track.
Ctrl+9 Select the Soloist track.