The Voice Sequence (.VSQ) file format was the file format used to store musical note and vocal data for the VOCALOID2 software. This format eventually was replaced by VOCALOID3's VSQX file format, which can save more data and VOCALOID3-engine-specific details.
Use this tag for any image that shows the interface of the software (Piano Roll, Music Notes, Syllables and Phonemes) or a representation of said file.