Kelly Williams (11 травня 2003). Background of the Guitar-Zither. The Guitar-Zither Clearinghouse. Архів оригіналу за 4 березня 2016. Процитовано 31 березня 2016. terminology on the "Chorded zither" (referred Autoharp without trademark infringement with Oscar Schmidt International), "Guitar-Zither" (patented by Fred Menzenhauer in 1894), and "Chord zither" (referred Guitar-Zither, appeared in The Oxford Companion[en] to Musical Instruments", and "The New Grove Dictionary of Musical Instruments").
minermusic.com
Gregg Miner and Kelly Williams (July 2011). Selecting the Term. Fretless Zithers. Архів оригіналу за 12 листопада 2020. Процитовано 31 березня 2016. terminology and taxonomy of the "Fretless Zither" family instruments.
web.archive.org
Kelly Williams (11 травня 2003). Background of the Guitar-Zither. The Guitar-Zither Clearinghouse. Архів оригіналу за 4 березня 2016. Процитовано 31 березня 2016. terminology on the "Chorded zither" (referred Autoharp without trademark infringement with Oscar Schmidt International), "Guitar-Zither" (patented by Fred Menzenhauer in 1894), and "Chord zither" (referred Guitar-Zither, appeared in The Oxford Companion[en] to Musical Instruments", and "The New Grove Dictionary of Musical Instruments").
Gregg Miner and Kelly Williams (July 2011). Selecting the Term. Fretless Zithers. Архів оригіналу за 12 листопада 2020. Процитовано 31 березня 2016. terminology and taxonomy of the "Fretless Zither" family instruments.
wikipedia.org
en.wikipedia.org
Kelly Williams (11 травня 2003). Background of the Guitar-Zither. The Guitar-Zither Clearinghouse. Архів оригіналу за 4 березня 2016. Процитовано 31 березня 2016. terminology on the "Chorded zither" (referred Autoharp without trademark infringement with Oscar Schmidt International), "Guitar-Zither" (patented by Fred Menzenhauer in 1894), and "Chord zither" (referred Guitar-Zither, appeared in The Oxford Companion[en] to Musical Instruments", and "The New Grove Dictionary of Musical Instruments").
