Blow-Boys and Girls Oy

Musiikkiopisto.fi is a Finnish music education website offering printable and audio-based music theory and solfège exercises created by Mika Perkiö. The site provides foundational music theory materials including scales, intervals, chords, rhythm, and melody exercises licensed under Creative Commons CC BY-NC-SA 4.0. Materials are freely available for personal use, with separate licensing required for educational institutional use.