ok first off im new on this site, ive been playing for 2 years and i still cant play very fast but im working on it, im also trying to learn how to write solos but have trouble thinking of what to do to the pentatonic scale a major. also ive heard of these things called arppegios but what are they and how can i use them. oh and i play rockish death metal just whatever i feel like at that time. please give me some pointers on how i can improve my playing. thanx a lot :)