what instruments does katy perry play?
Vocals
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 The band plays guitar , drums , bass guitar , piano , violin , viola , cello , double bass , xylophone , glockenspiel , keyboard , synthesizer , French horn , accordion , harp , mandolin , and hurdy @-@ gurdy , and takes most of these instruments on tour ; the multi @-@ instrumentalist band members switch duties throughout shows . 

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 In a break with Star Trek film tradition , the soundtrack incorporated two licensed songs : Roy Orbison 's " Ooby Dooby " and Steppenwolf 's " Magic Carpet Ride " . GNP Crescendo president Neil Norman explained that the decision to include the tracks was controversial , but said that " Frakes did the most amazing job of integrating those songs into the story that we had to use them " . 

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 The flag inspired Jeff Thompson , assistant professor and program director of Visual Art and Technology at the Stevens Institute of Technology , to create a sound file of the AACS encryption key as a melody . After a similar encryption key was cracked for the PlayStation 3 gaming system , a new flag was created by a different user as a tribute to Marcotte 's original flag . 

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 Instruments and programming – Bangladesh , Dr. Luke , Benny Blanco 

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 The original models were designed to be used in the home , and contained a variety of sounds , including automatic accompaniments . Bandleader Eric Robinson and television personality David Nixon were heavily involved in the instrument 's original publicity . A number of other celebrities such as Princess Margaret were early adopters . 
