polytonality
noun
poly·to·nal·i·ty ˌpä-lē-tō-ˈna-lə-tē 
: the simultaneous use of two or more musical keys
polytonal
ˌpä-lē-ˈtō-nᵊl
adjective polytonally
ˌpä-lē-ˈtō-nᵊl-ē
adverb 
Word History
First Known Use
1923, in the meaning defined above
- photogelatin process
- photogene
- photogenes
- photogenic
- photogenically
- photogens
- photogeologic
- photogeological
- photogeologies
- photogeologist
- photogeologists
- photogeology
- photoglyphs
- photogram
- photogrammetric
- photogrammetries
- photogrammetrist
- photogrammetrists
- photogrammetry
- photograms
- photograph
- photographable
- photographed
- photographer
- photographers