Emeralds were a now defunct Ohio based experimental electronic powerhouse comprises of Mark McGuire, Steve Hauschildt and John Elliott. All three members have gone on to make masterful experimental albums in their own right but as a trio their all too brief career produced a couple of the best rolling synthesizer and guitar based ambient albums of any era.
On the group's final album "Just To Feel Anything" the title track is an effervescent dip into cavernous ecstatic arppegiations that define the trio's collaborative genius.
Further Listening; https://emeraldsemego.bandcamp.com
Past Drones:
Ancient Ocean's Lush Tonal Meditations
Julianna Barwick's Haunting Ambient Hymns
1970s Film Stock's Intricate Instrumental Melancholia