This is the 2nd part of the Farruca which can be played after the first Farruca lesson I did. The tremolo is a difficult technique, but at least in this piece it is all done on the 1st string.
In future Lessons I will explore more the different techniques in Flamenco in more detail. Try to practice the tremolo on one chord until you feel comfortable, then go through each video slowly until you build up speed and try with the backing track 80bpms to see if you can keep in time.