Erowid is an organization dedicated to providing accurate, truthful information about "...psychoactive medications, entheogens, herbs, and recreational drugs". Thousands of contributors world-wide share their experiences in the Erowid Experience Vault, where Nemo has this to say about his first experience with Methamphetamine:
I plugged my electric guitar in for a couple hours and played like hell. I'm not a bad player normally, everyone who hears me thinks I sound amazing, but I let them judge that and refuse to evaluate my own abilities. Few times have I felt the music the way I felt it when I played that night however, I was shredding and screaming away with pretty accurate and impressive technique to boot, I just had this incredible sense of streaming energy; it was beyond just the physical effects of a CNS stimulant, that was partly responsible for my just wanting to tear through the strings, but I was thinking fast and hard about what I was doing, I've never experienced such great mental capacity and lucidity before, on anything. The only drawback I noticed in the entire experience was with playing however, sometimes when I played really fast passages my left hand would get a more nervous energy feeling, it would tense up and start to shake slightly; obviously this reduced my accuracy and the tension would make the graceful motion that one SHOULD play with more difficult, to combat this I had to stop completely for a second and relaxe my arm completely, and resume playing concentrating more on controlling my fingers.