Song comparisons

I Won't Back Down by Tom Petty and Stay With Me by Sam Smith: how alike are they?

Sonalize compared the two recordings: 79%, very strong similarity.

79%Very strong similarity
Harmony100%
Melody31%
Sound76%
Rhythm72%

Most of the music lines up, about as much as between a song and a cover of it.

I Won't Back DownStay With Me
ArtistTom PettySam Smith
KeyG MajorC Major
Tempo114 BPM85 BPM
Most alike passage2:48–2:572:40–2:49

Track B moved down 5 semitones (C Major to G Major)

On Sonalize’s other-version check (a cover-song model), this pair is alike in style, as songs of the same genre often are, though not the closeness of another version (distance 1.61; other versions of a song in these comparisons have a median of 0.31, different songs that sound alike 1.27, random pairs 2.95).

Why this pair

This is a pair from a copyright dispute that was decided or settled. Public background: chorus melody; Settled, made public Jan 2015; Petty & Jeff Lynne added as co-writers (12.5%). Sonalize's scores are measurements, not a view on any dispute.

How this was measured

Compared from the full recordings; Sonalize's fingerprint lookup confirmed both songs. The same engine runs in the Sonalize app on your own device. A score measures how alike two recordings are; it isn't a finding about copying, legal advice, or a rights clearance.

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