Sentence:  The Hephzibah Menuhin-Amadeus Quartet ( Angel ) and Victor Babin-Festival Quartet ( RCA Victor ) editions give us superlative string playing ( both in symphonic style ) crippled by <WSD>unimaginative</WSD> piano playing . 
Meaning of the word marked with <WSD> tags:  deficient in originality or creativity; lacking powers of invention