Chord Master
Chordmaster maarufu ilitolewa na Luthier Mario Maccaferri (anayejulikana kwa kubuni ukulele wa plastiki) na kampuni yake tanzu ya French American Reeds Manufacturing; vyombo vyake na kifaa cha chord ni vitu vinavyohitajika. Bidhaa shindani ziliuzwa chini ya lebo kama vile Noteless Player by Ferry & Co.