Whats the difference between classical and jazz guitar ?

Jazz and Classical guitar are two entirely different modes of guitar. Jazz guitarists use a lot of chord changes over a harmony. You might find yourself playing a standard such as 'TuneUp' by Miles Davis. This is a great way to learn jazz improvisation by way of learning chords that cover this scheme. The key starts in an E minor 7th, then shifts to a D minor 7, then shifts quickly to a C minor 7. and so on. At the same time, another guitarist may be playing harmony or a riff over this . Now think about classical. Classical guitarists are more method and note driven. They play notes basedon scales and tend to play less chords. If you like to improvise, jazz is for you along with blues. If you like beautiful, classy music, classical. Either way, both are difficult to learn and take much practice.

All the difference in the world. Classical is probably easier to learn as it is very structured and you often play note for note from sheet music. Jazz on the other hand is most often a chord structure with a lot of improvisation which can't really be learned, you have to have a feel for it, and be more creative.

2 major things: 1) Swing feel (Jazz) vs. even feel 2) Improvisation (Jazz) vs. composed