The Levitical Choir:

The Levitical Choir is am essential element of the Divine service of the Holy Temple. The performance of every offering was accompanied by the singing of the Levitical choir. An offering performed without the musical accompaniment by the Levitical choir was invalid.

In January 2023, under the leadership of Rabbi Menachem Rosental, the Temple Institute established the first self defined Levitical Choir in 2,000 years. Consisting of only Levites, (Jews whose lineage originated from the ancient tribe of Levi), with golden voices, the mission of the Levitical choir is to prepare in every way possible in order to be ready to perform the moment that the temple offerings as prescribed by the Torah are renewed. Part of the preparation is, of course, regular rehearsal as  well as public performances, especially on holidays.

[Videos of their songs at the link.]

https://templeinstitute.org/levitical-choir/   

Rabbi Tovia Singer: “The Altar Is Ready” for the Ezra 3 Prophecy:

The stones have already been prepared, uncut as prescribed by the law. The priestly garments are sewn, and the silver trumpets are made. According to Rabbi Tovia Singer, the only thing missing for sacrifices to resume in Jerusalem is the decision to carry the altar up the Temple Mount.

“We have an altar that’s ready to go,” Singer said in an interview with Rabbi Aron Sokol on the Parsha Inspired podcast, released during the holiday of Sukkot. “It’s built. It’s here. It’s ready to go on the Temple Mount. You technically do not need a Temple in order for an altar to be placed there and sacrifices to be offered.”

Singer, the founder of Outreach Judaism and one of the most widely followed Jewish teachers on the internet, described watching the mizbeach (altar) being assembled. “The stones have to be stones that no metal has ever touched,” he said. “Everything in the Temple is about a place of peace. They were cut with lasers. So it’s ready.”

Singer pointed to the third chapter of the Book of Ezra, which records the return of the Jewish exiles from Babylon around 538 BCE. The returnees found Jerusalem in ruins, and the Temple burned. The first thing they built was the altar, and they began bringing offerings on it immediately, years before the Second Temple was built.

“From the first day of the seventh month began they to offer burnt-offerings unto the LORD; but the foundation of the temple of the LORD was not yet laid.” (Ezra 3:6)  ...The seventh month is Tishrei, the month of Rosh Hashanah, Yom Kippur and Sukkot. The verses just before describe the returnees celebrating the festival with offerings on that newly built altar.

“We have the altar. We have the trumpets. We have the priestly vestments,” Singer said. “Everything is spinning now very quickly, so fast that none of us can keep track of it.”

https://israel365news.com/421611/rabbi-tovia-singer-the-altar-is-ready-for-the-ezra-3-prophecy/