I would appreciate some advice from any Alesis SR16 users.

Do you know how to add/remove beats from the pattern length? Although I am able to edit the USER PATTERN, I am unable to edit the USER SONG. (Also, when I edit the user pattern I cannot listen to the results because there is no sound.)

Do you add/subtract beats prior to or after composing a user song? Or do you record it as a user pattern and transfer it to a user song format afterwards?

Thanks, Bobby