musical(-ick), X sing(-er, -ing), song

Boyd’s Bible Dictionary:

“Music, Musicians, Musical Instruments” From Concise Bible Dictionary:

There must have been with these prophets some knowledge of music, which doubtless under David was further cultivated and devoted to the service of God, their music being intimately connected with temple worship. He had several companies of singers, and players on instruments, which are often mentioned in the Psalm. As these were indited under the guidance of the Holy Spirit, we may conclude that this way of celebrating the praises of God was in accordance with the dispensation that then was. Such an exhortation as “Praise Him with the psaltery and harp,” is beautifully in place in the Psalms; but in the New Testament dispensation it is, “singing and making melody in your heart to the Lord”; and “I will sing with the spirit, and I will sing with the understanding also.” “They that worship Him must worship Him in spirit and in truth.”
In the headings of fifty-five of the Psalm the words occur, “To the chief musician”; the word is natsach, and simply means “to the chief or the leader,” and may therefore apply as much to the singers as to the musicians. The musical instruments are considered under their various names.

“Singing” From Concise Bible Dictionary:

Such organized choirs have no place in the New Testament They that worship God “must worship Him in spirit and in truth.” This also applies to the singing: “I will sing with the spirit, and I will sing with the understanding also” (1 Cor. 14:1515What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also. (1 Corinthians 14:15); compare 1 Cor. 14:2626How is it then, brethren? when ye come together, every one of you hath a psalm, hath a doctrine, hath a tongue, hath a revelation, hath an interpretation. Let all things be done unto edifying. (1 Corinthians 14:26)). “Be filled with the Spirit, speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody [or chanting] in your heart to the Lord” (Eph. 5:1919Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord; (Ephesians 5:19)). “In psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord” (Col. 3:1616Let the word of Christ dwell in you richly in all wisdom; teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord. (Colossians 3:16)). There will be singing in heaven (Rev. 5:99And they sung a new song, saying, Thou art worthy to take the book, and to open the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation; (Revelation 5:9)). Singing and PRAISE naturally go together. At the institution of the Lord’s supper they “sang a hymn,” margin “psalm,” ὐμνέω (Matt. 26:3030And when they had sung an hymn, they went out into the mount of Olives. (Matthew 26:30)). The same word is translated “sang praises” unto God, when Paul and Silas were in prison (Acts 16:2525And at midnight Paul and Silas prayed, and sang praises unto God: and the prisoners heard them. (Acts 16:25)); and the Lord sings praise in the midst of the assembly (Psa. 22:2222I will declare thy name unto my brethren: in the midst of the congregation will I praise thee. (Psalm 22:22); Heb. 2:1212Saying, I will declare thy name unto my brethren, in the midst of the church will I sing praise unto thee. (Hebrews 2:12)).

“Songs” From Concise Bible Dictionary:

See HYMNS.

Strong’s Dictionary of Hebrew Words:

Transliteration:
shiyr
Phonic:
sheer
Meaning:
or feminine shiyrah {shee-raw'}; from 7891; a song; abstractly, singing
KJV Usage:
musical(-ick), X sing(-er, -ing), song