Hi Gustav - thanx.. This was all done in Logic Pro in my living room studio. . . I have a rather extensive Kontakt library, and own almost all of UVI's libraries, played thru the Falcon virtual instrument. On the acoustic sounds, yes they are samples of 'real instruments' also a couple of hardware synths.. I also have a fair amount of virtual instruments. Lately. I compose a piece, and then spend a fair amount of time, 're-voicing' it. That is I search thru libraries, and patches, and find sounds that 'fit better'. It often means re-recording parts, in a round robin manner. That is I pick a new bass sound, (go from electric bass to an acoustic bass). Then I re-record the piano part, then the guitar etc. The new bass, piano, guitar, then suggest to me to re-do the drums, etc.
I had read years ago, Prince would do this. Eventually recording a fair amount of the instruments in a piece several times. The end result is the piece, sometimes has little to do with how the piece originally sounded, So I've been doing the same.. The good thing about DAWs, of course, is you can save all the takes, Sometimes I add a few parts, then a couple of days later, I decide, I took a wrong turn, so I go back to the earlier version, and go in a different direction.. I feel pieces, especially 'sound paintings' as you call them, have a personality of their own, and just as it takes some time getting to know someone. It can sometimes take time for the personality of a song, or piece, show it's face.
I spent my whole life, playing music, most of the time, doing what paid the rent, sometimes composing, and working with people, that wouldn't be my natural choice. (not that I ever worked on music I hated).. Now in my senior age, I want to explore 'musical landscapes'.. Not too concerned with all the formal music rules I have learnt and abided by. (of course a lot of that is still there).