A pleasing combination of elements, or arrangement of sounds.
A literary work which brings together or arranges systematically parallel passages of historians respecting the same events, and shows their agreement or consistency.
The relationship between two distinct musical pitches (musical pitches being frequencies of vibration which produce audible sound) played simultaneously.
The academic study of chords.
Agreement or accord.
Two or more notes played simultaneously to produce a chord.
Closeness of appearance to something else.
A transformation that preserves angles and the ratios of distances
The property of two matrices being similar.
The relation of sharing properties.