Linda Rich was a Christian folk singer who recorded three albums: There's More to Living than I Know So Far (1969), Patterns (1970), and Apple Tree (1975).
All three albums are fantastic: melancholy, spiritual, sparse, gentle, rich, and luminous. her voice is somewhat like early Joni Mitchell (1968-71) but more mezzo-soprano, with fewer melissmas. her guitar playing is functional, but delicate. When there are arrangements, the strings are tasteful. On several tracks on both Patterns and Apple Tree there is some fulte work that gets some spacey-echo happening. It's not quite psych, but very close.
Her lyrics are very Christian, but she also ventures into some searching territory, particularly "An Agnostic's Prayer" from Patterns. I particularly appreciate her more atmospheric lyrics:
"Sun streaming through stained glass windows,
coloured shadows in a darkened room,
red on brown,
make colours sound,
and give the peace of knowing You"
"Stained Glass Windows" Apple Tree
You can download all three of these albums here: The Ancient Star Song
I highly recommend these albums to anyone, Christian or not. There are moments of pure sublime beauty on all of these records, and you can hear the questioning and joy of Linda's faith in all her songs. She doesn't package up Christianity into a neat, happy box; rather she asks questions and admits her failings, yet she also expresses her love of Christ in a gentle joyousness that is sincere and real.