The “Green Tara mantra”.
Om tare tuttare ture swaha (or soha) invokes the Green Tara, a female Bodhisatva or Buddha of compassion and action, a protector who comes to our aid to relieve us of physical, emotional and spiritual suffering. Translations abound. (My very quick research indicates that “soha” is the Tibetan version.)
This is kirtan. Teach it to a group, call and response. Watch the rhythm: 3+3+2 = 8. Percussion can mark the beat. Repeat ad infinitum. Let the trance develop. After they get it, encourage them choose their harmonies in the moment.