With these backing blues tracks, you can learn how to play the soprano saxophone blues. The play along blues tracks for soprano sax will help you develop a feel the blues changes over time.  The chords for this soprano saxophone blues track are:
In the 12 Bar Blues, the 1 Chord is ‘E Chord’ - Notes E, G#, B
In the 12 Bar Blues, the 4 Chord is ‘A Chord’ - Notes A, C#, E
In the 12 Bar Blues, the 5 Chord is ‘B Chord’ - Notes B, D#, F#
Some MAGIC notes to play around with are C#, E, F#