struture,tension,string,,sound,,sustain.....wood....machine head ...all is difference....
in modern style.....u can play all style..just what u want...
but classical guitar ,flamengo should use nylon string(classical and flamengo guitar look is same..but totally difference)..if u are beginner...u dont know...and not many people play flamengo in this forum...
the other style..also can use all guitar..(nylon ,steel,electric guitar)...depends on what 's the tone u want...