Andromedan music relies mostly on layering and repeating melodic patterns of different lengths. Though not frequently used on Earth in popular music, this structure is known as polymetric music, as it comes down to using several time signatures simultaneously. For instance, Melancholy track superimposes patterns of length 5, 6, 9, 10, 14 and 16 beats respectively:

Andromedan music also differs from terrestrial music by the use of a harmonic scale rather than a tempered whole-tone and halftone scale (Andromeda populations perceive frequencies linearly, unlike humans whose perception is logarithmic). For example, below is the Andromedan version of the Instrument building frenzy track, as performed in the Upsilon Andromedae system:

Nevertheless, the version released on Earth makes use of the western tempered scale, which is more familiar and accessible to human ears.