Vintage Synth Repair

I've been so far done recapping of mainly power supply, in analog
synthesizers. I'm no willing to start doing a full recap for a few
synths, and need to pick up the best make of caps for that purpose.

Most important is, of course, sound ! I had a bad experience recapping
an old stereo amplifier with modern makes of caps, and noticed some
change in sound, in a bad way (it sounded thinner once I recapped).

Any suggestions ?