Editing Polytonality (section)

===Polyvalency===
The following passage, taken from [[Ludwig van Beethoven|Beethoven]]'s [[Piano Sonata No.&nbsp;26 (Beethoven)|Piano Sonata in E{{music|flat}}, Op.&nbsp;81a (''Les Adieux'')]], suggests clashes between tonic and dominant harmonies in the same key.{{sfn|Marquis|1964|loc={{Page needed|date=November 2010}}}}

[[File:Bitonality in Beethoven.PNG|thumb|upright=1.8|center|Polyvalency suggested in Beethoven{{sfn|Marquis|1964|loc={{Page needed|date=October 2010}}}}[[File:Bitonality in Beethoven.mid]]]]

Leeuw points to Beethoven's use of the clash between tonic and dominant, such as in his [[Symphony No. 3 (Beethoven)|Third Symphony]], as polyvalency rather than bitonality, with polyvalency being, "the telescoping of diverse functions that should really occur ''in succession'' to one another".{{sfn|Leeuw|2005|loc=87}}

[[File:Polyvalency in Beethoven.png|thumb|upright=1.8|center|Polyvalency in Beethoven{{sfn|Leeuw|2005|loc=88}}[[File:Polyvalency in Beethoven.mid]]]]
[[File:Polyvalency in Stravinsky's Mass.png|thumb|upright=1.8|center|Polyvalency in Stravinsky's ''[[Mass (Stravinsky)|Mass]]''{{harv|Leeuw|2005|loc=88}}[[File:Polyvalency in Stravinsky.mid]]]]