원본: Movable Tonic. A Sequenced Sight-Singing Method Student Book composed by Alan McClung. Published by GIA Publications.
번역: 이동 토닉. A Sequenced Sight-Singing Method Student Book. 이동 토닉. 학습. 200 페이지. GIA 간행물에 의해 게시. GI.G-7028A. ISBN 9781579996253. 학습.