Editing Modulation (music) (section)

===Phrase modulation===<!-- "Truck driver's gear change" redirects here -->
[[File:Mozart - K.331, III, mm.6-10 phrase modulation.png|thumb|350px|Phrase modulation in [[Wolfgang Amadeus Mozart|Mozart's]] Sonata in A major, K.331, III (''Alla turca''), mm. 6–10.<ref>Benward and Saker (2003), Vol. I, p. 244.<!--ibid--></ref>{{audio|Mozart - K.331, III, mm.6-10 phrase modulation.mid|Play}}]]

Phrase (also called direct, static, or abrupt) modulation is a modulation in which one phrase ends with a [[cadence (music)|cadence]] in the original key, and the next phrase begins in the destination key without any transition material linking the two keys. This type of modulation is frequently done to a [[closely related key]]—particularly the dominant or the relative major/minor key.

An unprepared modulation is a modulation "without any harmonic bridge", characteristic of [[impressionist music|impressionism]].<ref>[[Rudolph Reti|Reti, Rudolph]] (1978). ''Tonality, Atonality, Pantonality''. Westport, CT: Greenwood Press. {{ISBN|0-313-20478-0}}.</ref>

For example:
:{|class="wikitable" style="text-align:center"
|-
!
|A
|E
|A
|F
|B{{flat}}
|F
|-
!A major
|I
|V
|I
|
|
|
|-
!F major
|
|
|
|I
|IV
|I
|}

When phrase modulation comes at or near the end of a musical piece, it is referred to as a '''truck driver's gear change''', especially in popular music.