Mosaic Gospel Choir's spring concert is Sunday, April 30, from 5 to 6 p.m., followed by a potluck supper. The concert will be held at Mountain View United Methodist Church, 355 Ponoca Pl. It will feature the debut performance of a song by Reverend David Sharp, spoken-word poetry by Mosaic founder Reverend Roger Wolsey and special guests Phoenix, Colorado’s trans choir. Admission is free; an offering will be taken for musicians.