Mozart wrote his Clarinet Concerto in 1791 for the virtuoso, Anton Stadler (1753-1812). He and his brother Johann were
distinguished players of the clarinet and basset horn and had known Mozart since 1784, when they participated in
performances of his wind serenades. Anton's friendship with Mozart was intensified when the joined the same
freemason's lodge, zum Palmbaum, where they often played music together. Stadler also accompanied Mozart to
Prague in the autumn of 1791 to play the clarinet obbligatos in La clemenza di Tito. In addition, he was responsible for
many technical improvements to both the clarinet and the basset horn, adding extra keys to both instruments and
extending the range of the clarinet down to written C - thereby inventing the so-called basset clarinet.
This concert band arrangement has been published to mark the 250th anniversary of Mozart's birth in 2006.
As has been mentioned above, Mozart wrote this concerto for a clarinet with an extended lower range, compared to
the conventional instrument. As early as 1802, published versions appeared with registral changes, which made the
concerto playable on instruments without the extra keys. Mozart, not surprisingly, had made full use of the extra notes
in the extended chalumeau register and it has to be said that many such 'simplified' versions do not improve the
concerto.
When producing an edition for the conventional clarinet there are two choices to be made about the 'extra' notes - is
it better to maintain the musical line, and hence transpose whole phrases or passages up an octave, rather than
single notes, or is the chalumeau tone more important, in which case it may possibly be better to alter one or two notes
to keep the correct octave. In this edition Philip Sparke has usually gone for the former so the 'sequences' make
musical sense, but have taken the second option in some places.
Soloists performing this concerto may, of course, use their own preferred edition of the clarinet part, should they wish
to do so.