He asked us whether we can sing the song of redeeming love. I want to have some singing. I do not know what part Alma sang in the Zarahemla Tabernacle Choir, but I think he knew what it meant to sing as his soul sang with joy and goodness, I am sure, on many occasions.
A sister who led a Young Women’s choir for a long time said, "The way you praise God is how you live." She would tell the girls that all the time, "If you want to be able to sing this so they know that you truly have a testimony, you sing your testimony. You sing your conversion. The way you sing is how you live." That is a great message. Do you think Alma would have agreed with it? What makes you believe that? He lived the life. He walked the walk. He exuded this kind of enthusiasm and the dedication that shows that he lived what he testified. It is also a part of the Young Women’s theme, that we testify of him at all times and in all places. Well how do we do that? By the way we live.
When Alma described his conversion to Helaman in Alma 36:22, singing came up again. When he feared that he was going to be destroyed, he said, "I saw, even as our father Lehi saw, God sitting upon his throne, surrounded with numberless concourses of angels, in the attitude of singing and praising their God; yea, and my soul did long to be there." He wanted to be in the choir! I think that was part of the song of redeeming love that he was referring to in Alma 5.
LeGrand L. Baker and Stephen D. Ricks, "Alma 5: The Song of Redeeming Love," in Who Shall Ascend into the Hill of the Lord?: The Psalms in Israel’s Temple Worship in the Old Testament and in the Book of Mormon, 2nd ed. (Salt Lake City, UT: Eborn Books, 2011), 520–537.