In this arrangement of "The Entertainer" for clarinet in Bb with piano accompaniment the sounding key is Bb whilst a tempo of around 72 quarter note (crotchet) beats to the minute is recommended. The solo instrument part is appended to the full music score with the appropriate transposition. Players may well want to challenge the intermediate level that has been given for this piece because it may well be better described as being at an advanced level. Scott Joplin's The Entertainer is described as a Rag Time Two Step and was composed in 1902. The music is instantly recognisable, which is a disadvantage to any instrumentalist because as a consequence it needs to played both accurately and musically. Ragtime is the first readily identifiable modern popular music in that it has elements and links with popular music that succeeded it. Unfortunately, much ragtime music is played very badly and frequently at too fast a tempo so I would suggest listening to Scott Joplin;s own remastered piano rolls to obtain an understanding of the performance style. Ragtime music is also quite deceptive in that it sounds easy on the ear but is actually quite challenging to play.