obertongesang

oberton

overtone singing

polyphonic overtone singing

polyphoner obertongesang

anna-maria hefele

canto armonico

overtone

polyphony

music education (field of study)

singing (musical instrument)

voice

choir

singers

anna-maria

hefele

anna

maria

canto difonico

music

polyphon

vocal

overtones

tutorial

stimme

chorus

concert

ana

amazing

vocals

chant diphonique

workshop

overtones

tubax

woodwind

subcontra

contra

slide

sax

conno

saxophone

coast guard

dc

washington

military

soldier

soldiers

air force

marines

navy

army