Everyone is linking the stuff they use, so I will add as well. I like the ambient/electronic as well, but this one might be new/exciting for some of you.

https://www.youtube.com/watch?v=Lnk_b_7trII

This is an extended edition of "it might just be a one shot deal" from the waka/jawaka album by Frank Zappa. The extended part is the pedal steel played by Sneaky Pete Kleinow.

If you have never heard any Zappa stuff and this is interesting to you, listen to waka jawaka itself if you like instrumentals. If you want something more commercial, listen to the Apostrophe/Overnite Sensation album. If you want more odd, listen to the Bongo Fury album, featuring Captain Beefheart. Happy exploring.