Harp and bowl
The Harp and Bowl style of worship, which features musical prayer, derives its name from Revelation 5:8, which describes heavenly creatures which each "had a harp" and "were holding golden bowls full of incense, which are the prayers of the saints."
A common feature of harp and bowl worship is antiphonal singers, who use the Bible as a song book along with spontaneous instrumental accompaniment.[1]
This style can sustain long periods of worship - for instance, the International House of Prayer in Kansas City has used this method of worship to sustain a prayer meeting since September 1999.