“The worship we see from the apostles is not modeled after the temple, but upon worship in the synagogue. As corrupt as the Jews were at various times, during the intertestamental period when the synagogue rose to prominence, the Jews had enough understanding not to mimic bloody temple worship outside the temple. The synagogue worship was without animal sacrifice and musical instruments. It included prayers, singing of a cappella psalms, the reading of Scripture, and exposition of the Word. (Seem familiar?) The synagogue was self-consciously detached from the worship of the temple. At minimum, they had the sense to know that erecting mini-temples (high places) as their fathers had done was blasphemous.
When Christ came, part of his ministry was to fulfill temple worship and put an end to it. This is why the destruction of the temple was such a big deal, and a major part of Christ’s prophetic ministry. However, God had ordained the synagogue to be the precursor of the church. Musical instruments in worship may seem quite innocuous to us at this time, but that’s because we’ve not understood their connection to ritual sacrifice, which would have been very obvious to the Jewish Christians who formed the early church.
After the temple was destroyed in 70 A.D., even the unbelieving Jews ceased using musical instruments, because they recognized their connection with the animal sacrifices.”
Source: https://puritanboard.com/threads/history-of-instruments.93085/, Comment 26