The Tremolo Technique is one the most basic classic guitar techniques for the RH, yet it's arguably the most difficult to perfect. Under normal circumstances, the p -cello- plays the bass strings (E,A,D), the i -viola- plays the G, the m -violin 2- plays the B, and the a -violin 1- play the E. I consider the fingers of the RH equivalent to a well balanced string quartet.
Wether the tremolo be played on a single string or on various strings, there should be at least three things to look out for. Namely, no arm movement, no interruption in tempo, and evenness in sound coupled with correct accenting.
