Which of these high-tech musical instruments was discontinued within 18 months of its launch despite a $30 million marketing campaign and celebrity endorsements from major artists?

In the music industry, not every product launch hits the right note. Some innovative instruments and music tech gadgets were hyped as revolutionary but quickly fell flat. This poll tests your knowledge about one of the most notorious musical product launch failures of the 2010s - a digital instrument that promised to transform how musicians create but ended up as an expensive footnote in music tech history.

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Roli Seaboard Rise (2015)
Artiphon Instrument 1 (2016)
Eigenharp Alpha (2009)
Zivix JamStik+ MIDI Guitar (2015)