But if I do so, will I no longer be able address the excellent sounds (i.e. patches) in the XP-60 ?

NO The PC is only talking MIDI data, the sounds still remain, and sound from the XP-60.
MIDI does not transmit audio information, it's just instructions sent by the XP-60 which the PC records.
The PC then just plays back those same instructions to the XP-60.

- Can the XP-60 be played accessing its patches by the PC ?

YES, it can even select the patches you wish to play using Program change messages.

- If I download the to sequence onto the PC will it 'remember' which patches I orginally used when I load the sequence back up onto the XP-60 ?

Providing the software your using as no filters switched on. YES

- Do I need any special Roland software... ?

NO



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