Main articles: clarinet family, E-flat clarinet, soprano clarinet, alto clarinet, bass clarinet, basset-horn, contra-alto clarinet and contrabass clarinet Clarinets have the largest pitch range of common woodwinds. The intricate key organization that makes this range possible can make the playability of some passages awkward. The bottom of the clarinet’s written range is defined by the keywork on each instrument, standard keywork schemes allowing a low E on the common B♭ clarinet. The lowest concert pitch depends on the transposition of the instrument in question.