tambouras
... that the tambouras, a Greek traditional string instrument of the lute family and ancestor of the bouzouki, features movable frets?
... that the <b id="mwAcs"><a href="./Tambouras" id="mwAcw" rel="mw:WikiLink" title="Tambouras">tambouras</a></b>, a Greek traditional string instrument of the <a href="./Lute" id="mwAc0" rel="mw:WikiLink" title="Lute">lute</a> family and ancestor of the <a href="./Bouzouki" id="mwAc4" rel="mw:WikiLink" title="Bouzouki">bouzouki</a>, features movable frets?