TH

Soprano Alto Tenor Bass
女高音、女低音、男高音、男（中）低音。

— Tonal Harmony, 8e, p72

ref:

• http://raympoon.playgroundhk.com/bbs/musicpo1.htm
• https://courses.lumenlearning.com/musicappreciation_with_theory/chapter/introduction/

simple & compound meter
ref: https://press.rebus.community/sightreadingforguitar/chapter/unit-9-simple-vs-compound-meter/

chapter 3
ref:

• https://academic.udayton.edu/PhillipMagnuson/soundpatterns/fundamentals/sonority.html#:~:text=The%20basic%20sonority%20of%20the%20Common%20Practice%20Period,M3%20m3%20%2B%20m3%20M3%20%2B%20M3%20

superimposed:
ref:

• http://www.jamieholroydguitar.com/chord-substitution-vs-chord-superimposition/#:~:text=When%20you%20are%20superimposing%20one%20chord%20over%20another,see%20that%20there%20are%20two%20bars%20of%20F7.

1st inversion:
ref:

• https://learnmusictheory.net/PDFs/pdffiles/02-08-SATBPartWriting4FirstInversionTriads.pdf
• http://www.toddtarantino.com/chromatic/TarantinosRulesforPartwriting.pdf

doubling:
ref:

• https://www.schoolofcomposition.com/beginners-guide-to-4-part-harmony/#:~:text=Four-part%20harmony%20is%20a%20traditional%20system%20of%20organising,played%20on%20an%20instrument%20or%20anything%20in%20between.