Musical idolatry really started in the garden of Eden: the serpent is defined as a musical enchanter(ess). Christ in the prophets calls Tyre "the singing and harp playing prostitute" in the garden of Eden.
For a national musical fall from grace and imposing of the Law, you have to begin at Mount Sinai.
In Exodus 32 the nation begins musical idolatry but they refused to listen to the voice of God and were made deaf and blind until they returned to Christ (2 Cor 3).
Ex. 31:14 Ye shall keep the sabbath therefore; for it is holy unto you:
every one that defileth it shall surely be put to death:
for whosoever doeth any work therein,
that soul shall be cut off from among his people.
Keep: H8104 shâmar shaw-mar' A primitive root; properly to hedge about (as with thorns), that is, guard; generally to protect, attend to, etc.:—beware, be circumspect, take heed (to self), keep (-er, self), mark, look narrowly, observe, preserve, regard, reserve, save (self), sure, (that lay) wait (for), watch (-man).
Keep in Latin: Custodio II. With the access. idea of hindering free motion, A. In gen., to hold something back, to preserve, keep: To sport, play with any thing, to practise as a pastime, amuse one's self with any thing, B. To sport, dally, wanton mimic or imitate work, make believe work. B. Especially to play on an instrument of music, to make or compose music or song:"
Defile the Sabbath and God says to put you to death. What is it to DEFILE:
h2490 Chalal to play the flute, to take people's inheritance, to pollute or prostitute.
Ex. 31:15 Six days may work be done;
but in the seventh is the sabbath of rest, holy to the LORD:
whosoever doeth any work in the sabbath day,
he shall surely be put to death.
Ex. 31:16 Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.
So, it probably doesn't matter which day you DEFILE the REST DAY, you are a goner "no turning back, no turning back."
Some people THINK they are in control when God is really pulling the strings: those who dare to sow deliberate discord and introduce INSTRUMENTS to steal the church of the widows will ALWAYS fall backward and use the CURSE imposed on the Israelites AFTER they defiled the Sabbath by doing musical idolatry at Mount Sinai.