Music is an expression of worship. It's in the Bible, Exodus 15:1, NIV. "Then Moses and the Israelites sang this song to the Lord; 'I will sing to the Lord, for He is highly exalted.'"
A good way to praise God is through music. It's in the Bible, Psalm 33:1-3, and Psalm 81:1-2, TLB. "Let all the joys of the godly well up in praise to the Lord, for it is right to praise Him. Play joyous melodies of praise upon the lyre and on the harp. Compose new songs of praise to Him, accompanied skillfully on the harp; sing joyfully." "The Lord makes us strong! Sing praises! Sing to Israel's God! Sing, accompanied by drums; pluck the sweet lyre and harp."
Music can be a means of memorizing Scripture. It's in the Bible, Colossians 3:16, TLB. "Remember what Christ taught and let His words enrich your lives and make you wise; teach them to each other and sing them out in psalms and hymns and spiritual songs, singing to the Lord with thankful hearts."