Hi Larry,

Not necessarily used for only midi files,,,I use the kn7000 sequencer when recording music and save as a technics file....rarely though would I need to merge tracks; for example say I record track 7 and 8, which may be a piano sound but for only one musical staff line, I may have one tracked panned left and another right for more stereo seperation....if I ran out of tracks and wanted to add a 17th, I could merge 7 and 8 which would allow me to sequence another track,,,,have only ran into this problem once or twice as 16 tracks is usually plenty..plus audio data on top of that!