It's been a while since my bass "married" with a Roland....and I'm beginning to ask myself about two elementary things,since I'm a bit concerned about the potential loss of the patches I made so far on the unit. 1.Does anybody know what's the estimated life of that little battery wich preserves the patches and system parameters? And what type is? It looks like a common-sense attitude to have somewhere in the gigbag such a battery for our beloved synth,in the same way we carry a spare battery for the active electronic of the instrument himself. 2.Wich software/MIDI sequencer (PC platform) capable of record exclusive messages do you recomend for saving the data from a V-Bass? The brand recomends the Roland MC-80,but there might be another useful PC sequencer to use in this aspect. I'm not a newbie with the PC,but the MIDI stuff is not my strong side and,honestly,I don't have time tu install/uninstall a ton and a half of sequencers,'till I find the right one. Thanks!