Editing Cadence (section)

==Jazz==
Cadences in [[jazz]] are usually simply called cadences, as in common practice harmony. However, a certain category of cadence is referred to as a [[turnaround (music)|''turnaround'']] (originally called a "turnback" which is more accurate); this is when a cadence functions as a return to an already existing part of a song form such as AABA. In an AABA form, there are two turnbacks: at the end of the first A (A1) in order to repeat it (A2), and at the end of the B section in order to play the A a third time (A3). (The transition from the second A to the B is not a turnback, because the B section is being heard for the first time.)

[[Half-step]] cadences are common in jazz if not cliché.{{what?|date=November 2022}}<ref>Norman Carey (Spring, 2002). Untitled review: "''Harmonic Experience'' by [[W. A. Mathieu]]", p. 125. ''[[Music Theory Spectrum]]'', vol. 24, no. 1, pp. 121–134.</ref> For example, the ascending diminished seventh chord half-step cadence, which—using a [[secondary leading-tone chord|secondary diminished seventh chord]]—creates momentum between two chords a major second apart (with the diminished seventh in between).<ref name="L&H">Richard Lawn, Jeffrey L. Hellmer (1996). ''Jazz: Theory and Practice'', pp. 97-98. {{ISBN|978-0-88284-722-1}}.</ref>

{{block indent|<score sound="1"> {
    \relative c' {
        \time 4/4
        <b d f aes>1 <c es g bes> \bar "||"
    }
}
</score>}}

The descending diminished seventh chord half-step cadence is assisted by two [[common tone (chord)|common tones]].<ref name="L&H" />

{{block indent|<score sound="1"> {
    \relative c' {
        \time 4/4
        <des e g bes>1 <c es g bes> \bar "||"
    }
}
</score>}}