Leonard MacClain
... that Philadelphia organist Leonard MacClain debuted an instrument called the “Photona" on CBS Radio in 1935?
... that <a href="./Philadelphia" id="mwA4k" rel="mw:WikiLink" title="Philadelphia">Philadelphia</a> <a href="./Organist" id="mwA4o" rel="mw:WikiLink" title="Organist">organist</a> <b id="mwA4s"><a href="./Leonard_MacClain" id="mwA4w" rel="mw:WikiLink" title="Leonard MacClain">Leonard MacClain</a></b> debuted an instrument called the “Photona" on <a href="./CBS_Radio" id="mwA40" rel="mw:WikiLink" title="CBS Radio">CBS Radio</a> in 1935?