Learning the 12 Major Scales in one of the most important things fledgling jazz musicians (or any musician) can do. The 12 Major Scales are one the very basic fundamentals of music, and it’s incredibly important. Here are PDFs for the 12 Major Scales in treble clef and bass clef.
Three of the keys can also be written with their enharmonic equivalents, and so there are 12 Major Scales by sound, but 15 Major Scales by sight, when you write them out. C# and Db share the same major scale with a different key signature. Similarly, F# and Gb share the same scale enharmonically, as so do B and Cb.
There are two versions of the bass clef version, one geared toward trombone players and one geared toward bass players. Either instruments can play either version of the chart, but trombone players generally prefer to play in a higher tessitura than bass players, and so some of the octaves are different between the two versions.
Learning your 12 Major Scales opens up so many possibilities, and they are incredibly important to learn. Enjoy!