Key Takeaways Neo-Riemannian theory, named after music theorist Hugo Riemann, provides a means of rationalizing triadic progressions that involve sharing common tones, more so than staying within one key. Every Neo-Riemannian transformation toggles between one major and one minor triad. The most basic Neo-Riemannian transformations shift one note and keep two common tones. relates a … Continue reading Neo-Riemannian Triadic Progressions