Morning Blues is a nice rhythmic blues composed by Jaroslav Šimíček. The composition is written in an arrangement for three clarinets and piano with optional parts for guitar, bass guitar (double bass) and drums. Parts for rhythm section can be downloaded online.  This swinging piece will clarinetists like to practice and play. 
There is a link in the set that will allow you to download a demo recording and a piano accompaniment recording in mp3 format to your computer. Recordings are made from the notation program in which the songs were written. The audio (demo) file give you an idea of how the song sounds, the piano accompaniment can be used for practicing the song.  

Composition Morning Blues was released for ensembles of flutes, clarinets and saxophones. All three editions are compatible with each other and the individual lines can be freely combined among themselves to create an ensemble from the musical instruments you currently have available.