#1
need some help, im starting to play some jazz some common scales might help me out. im open to any other suggestions to help in my situation
#2
just base everything around a major scale. it simplifies everything a lot because most of the others come from a major scale. you can use a mixolydian mode which is a major scale with a flat 7th step (over seventh chords), minor scales obviously, you can use the locrian mode which is basically a major scale starting a half step down. look up modes somewhere on the internet to learn how to use them.
#3
Diminished Scale, Augmented Scale, Exotic Scales, and finally Modes. All Jazz is other that Blues scales

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Fender Stratocaster MIM
Jackson DX10
Epiphone Les Paul Custom (neck: Seymour Duncan Jazz, Bridge: Seymour Duncan Distortion)
Marshall Mg50dfx
Digitech Metal Master
Crybaby 535Q