| The Concerto of the clarinet in A major(K.622)was originally written not for the clarinet in A major,but for the Bassett of G major.However,because of its own performance defects,such as tone,range,key sensitivity and so on,G-bassett is soon abandoned.So the famous clarinet player and instrument improver,Anton Stader(1753-1812),made further improvements on the basis of the original Bassett tube,and Mozart also made adjustments to the original score.This is Mozart’s Concerto of Clarinet in A Major(K.622).So,We call K.622 is a classic composition in the process of the clarinet instrument improvement;Mozart created K.622 in the last year of his life.Under the pressure of illness,tedious solicitation and both mental and physical strength,Mozart was able to write the beautiful melody of the first and third movements,"light,bright and natural." And the music,especially the second movement,sent out a faint sadness,as if he had a hunch about the arrival of the limit.The author can not help but ask,this happy and sentimental melody whether he intended for it,or inadvertently revealed.Therefore,according to "listening to the sound,analyzing music score","exploring the process of the clarinet instrument improvement ","examining Mozart ’s life and mental condition in his later years",The application of modified clarinet as "non-soloist identity and soloist identity" in this work is obtained,and the value of classicial time of music "spiritual comfort,self-redemption" contained in Mozart K.622 is further explained. |