Spiegel im Spiegel

Spiegel im Spiegel is a piece of music written by Arvo Pärt in 1978, just prior to his departure from Estonia. The piece is in the tintinnabular style of composition, wherein a melodic voice, operating over diatonic scales, and tintinnabular voice, operating within a triad on the tonic, accompany each other. It is about ten minutes long.