Function dominant_seventh_to_major_subdominant 

pub fn dominant_seventh_to_major_subdominant(
    possibility: &[Pitch],
    info: Option<&ChordInfo>,
) -> Result<Vec<Pitch>>

Resolves a dominant seventh in root position to the major subdominant: music21’s dominantSeventhToMajorSubdominant.

Errors

As dominant_seventh_to_major_submediant.