Commentaries:
Jamieson, Fausset, and Brown
take—rather, "lift up the voice" (sing) to the note of [UMBREIT].
timbrel—rather, "tambourine."
organ—not the modern "organ," but the "pipe" (Genesis 4:21). The first clause refers to stringed, the latter, to wind instruments; thus, with "the voice" all kinds of music are enumerated.
Other Jamieson, Fausset, and Brown entries containing Job 21:12:
Job 24:18-21
Job 30:31
Job 34:8
Psalms 73:8
Isaiah 5:12
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.