Sonotone Classic - Nickel Steel CLARITY • PUNCH • TRUE Nickel Steel The SonoTone Classic is a sound reminiscent of early 72. Bright and attacking, but the low range follows without delay. The string return time is very fast, and the feeling of sucking on your finger when you play a cord or single note is a fine play nuance and accurate tracking even when you move a fret! No matter what pickup or wood, the guitar features and sound pure, this is a rare string that is compatible with all guitars.