Danny, Some sequences use system exclusive messages. The messages are only readable by the same manufactured models. In the early sequencing world, most sequences originated on the Roland Sound Canvas[GS]. We saved the settings as set-ups ,they are actualy system exclusive information, and only read by a GS instrument,[Roland E , EM and G series and SC line]. Many of the net material , I, m Sure are using system exclusive messages from each individual manufacture,. You can add your own program change and levels etc. ,the changes you write will not be affected by the exclusive messages that do not pertain to your instrument[you do not have to delete the system info]......Fran