In terms of content, the technology volumes offer valuable etudes for consistent daily practice. Flamenco guitar techniques are covered. Also ideal as a daily warm-up.

Gerhard Graf-Martinez is one of the most successful authors of flamenco-specific guitar textbooks worldwide. Born in 1952 in the Stuttgart area, he began playing rock and blues as a teenager before he came to the classical guitar. This was followed by guitar-related stays in Spain with a deepening of his knowledge of traditional and modern flamenco. This laid the foundation for his musical career and was followed by concerts, TV appearances, textbooks, seminars and a series of CD releases.