Linked from
The 33 pages that link to Musical interval, each with the reason it gives.
Musical tuningNarrower topic: A tuning system specifies the sizes of intervals between its pitches.
DissonanceNarrower topic: Intervals provide the basic unit for describing two-note dissonances.
Figured bassNarrower topic: Each figure names an interval counted upward from the written bass note.
TritoneNarrower topic: The tritone is one specific interval, defined by its three-tone span.