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I've been using MSP happily for 12 months and now want to go to the next level and auto sync a drum machine and keyboard with program changes when a new song is loaded. I guess i need a midi adapter that will connect to my Samsung tablet. What hardware can you guys recommend for reliability?  Are there reliable wireless options? I also plan on getting a foot switch for page turns. 
Thanks in advance. 
I'm using a Beatbuddy and a Yamaha CP4 with a Samsung A6 tablet.