New track
-Option-N
New basic Real track
-Shift-N
Duplicate track
-D
Delete selected track
-Delete
Select previous/ next track
Up arrow/Down arrow
Mute/unmute selected track
M
Solo/unsolo selected track
S
Show/hide track-volume track
A
Show/hide master track
-B
Show/hide Track Info dialog box
-I
-Option-N 