Amazing Guitar Inventionby bigwalnutmusic   6 years ago

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To get one of these:
http://thehammerjammer.com/buy-now-and-installationtutorial.html
Contact: [email protected]
Do you think we should develop the bass guitar Hammer Jammer version:
https://www.youtube.com/watch?v=Vs4wWez-7A8
If yes, send us an email at: [email protected]

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