Please answer the following question: What type of details about jan hammer can be gathered from the following bio? Bio: jan hammer -lrb- -rrb- -lrb- born 17 april 1948 , in prague , then czechoslovakia , today the czech republic -rrb- is a composer , pianist and keyboardist . he first gained his most visible audience while playing keyboards with the mahavishnu orchestra in the early 1970s , as well as his film scores for television and film including '' miami vice theme '' and '' crockett 's theme '' , from the popular 1980s program , '' miami vice '' . he has continued to work as both a musical performer and producer , expanding to producing film later in his career . hammer has collaborated with some of the era 's most influential jazz and rock musicians such as john mclaughlin , jeff beck , al di meola , mick jagger , carlos santana , stanley clarke , tommy bolin , neal schon , steve lukather , and elvin jones among many others . he has composed and produced at least 14 original motion picture soundtracks , the music for 90 episodes of miami vice and 20 episodes of the popular british television series '' chancer '' . his compositions have won him several grammy awards .
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