Editing Perfect fourth (section)

====Jazz====
Jazz uses quartal harmonies (usually called ''[[Voicing (music)|voicing]] in fourths'').

[[Cadence (music)|Cadences]] are often "altered" to include unresolved [[suspended chord]]s which include a fourth above the bass:

[[Image:II V I for wikipedia.png|thumb|none|275px|([[Image:Loudspeaker.svg|11px]][//upload.wikimedia.org/wikipedia/commons/b/b1/II_V9_I.MID Listen]) The II-V-I cadence ([[Image:Loudspeaker.svg|11px]][//upload.wikimedia.org/wikipedia/commons/6/6d/II_V9sus_I.MID Listen]) The fourth-suspension or "sus"-chord]]

[[Image:Maiden Voyage2.png|thumb|center|400px|Fourths in [[Herbie Hancock]]'s ''[[Maiden Voyage (composition)|Maiden Voyage]]''{{citation needed|date=January 2011}}]]

{|
|[[Image:Barretto Amor Artificial.png|thumb|right|345px|[[Image:Loudspeaker.svg|11px]] [//upload.wikimedia.org/wikipedia/commons/f/f4/Barretto_Amor_Artificial.mid Listen] The brass section of [[Ray Barretto]]'s version of ''Amor Artificial'']]
|[[Image:Nascimento Vera Cruz.png|thumb|right|345px|[[Image:Loudspeaker.svg|11px]] [//upload.wikimedia.org/wikipedia/commons/a/a3/Nascimento_Vera_Cruz.mid Listen] Guitar [[Break (music)|break]] from [[Milton Nascimento]]s composition "Vera Cruz"]]
|}