25 Or 6 To 4 is from Chicago's first album, Chicago Transit Authority and is one of their most popular tunes. It is much more on the rock side of Chicago's repertoire. In this arrangement I deviated from my usual adherence to sounding exactly like Chicago. This is a blend of Chicago's version with a lot of influence from the Woody Herman jazz version as well as some of my own interpretations.

Due to continued health issues, it took a very long time to complete this arrangement (five months). It is becoming increasingly difficult to keep up with my musical projects and being able to play the trumpet. Therefore, this may be the last musical arrangement I do. At least, anything of this level of complexity. Five months to complete one song is unacceptable and frustrating.