Instrumental Advent Calendar #20: Mouth bow December 20, 2017 / Gjermund Kolltveit / Advent calendar, Instruments, Musicking Posts navigation ← Instrumental Advent Calendar #19: MandolinInstrumental Advent Calendar #21: Hulusi → Gjermund Kolltveit Music archaeologist, ethnomusicologist, musician – Nesodden, Norway. Main research interests: sound and sound tools (e.g. jew’s harps, lyres, ringing stones, bells) in human culture and soundscapes. Leave a Comment Cancel ReplyCommentName (required) Email (will not be published) (required) Website Save my name, email, and website in this browser for the next time I comment. Δ