Here are the recordings for the jazz standard:
On the Trail Play-Along
On the Trail
…and blues:
C Blues (audio)
C Blues (pdf)
The following pdf files contain the music:
Alto Sax Set 2
Bari Sax Set 2
Bass Set 2
Bass Trombone Set 2
Drumset Set 2
Guitar Set 2
Piano Set 2
Tenor Sax Set 2
Trombone Set 2
Trumpet Set 2
Vibes Set 2