[= Soneto IV in PujolV]
At head: Este soneto se a de tañer algo apriesa es facil de tañer.
At beginning of 2ª parte: Esta otra diferencia del mismo soneto, la entrada tañerse a despacio.
This appears to be a setting with vihuela accompaniment more than a vocal arrangement, or transformed through glossing.
The opening of the piece is given as “primero grado” of difficulty, the variation is “segundo grado”