Not sure about influence, but here's a few ongoing inspirations:

Daevid Allen
Magma
Third Ear Band
Don Cherry
Sun Ra
Rene Zosso
Jim Eldon
Seamus Ennis
Derek Bailey
Johnny Mbizo Dyani
Scott Walker
Robert Wyatt
Davie Stewart
Jordi Savall
Rene Clemencic
Vivian Stanshall