英语词源字典 - 在线词源网站

breve (n.): mid-15c., musical notation indicating two whole notes, from Latin breve (adj.) "short" in space or time (see brief (adj.)). The grammatical curved line placed over a vowel to indicate "shortness" (1540s) is from the same source.
crotchet (n.): late 14c., "crocket," later "small hook" (early 15c.), from Old French crochet (pronounced "crotchet") "hook" (see crochet). As a surgical instrument, from 1750. Figurative use in musical notation is from mid-15c., from the shape of the notes. Meaning "whimsical fancy" is from 1570s; perhaps from the same mechanical image in crank; but other authorities link this sense to the musical notation one.
Guidonian (adj.): 1721, in reference to the system of musical notation devised by Guido d'Arezzo, who lived early 11c.
ligature (n.): c. 1400, "something used in tying or binding," from Middle French ligature (14c.), from Late Latin ligatura "a band," from Latin ligatus, past participle of ligare "to bind" (see ligament). In musical notation from 1590s; of letters joined in printing or writing from 1690s.
staff (n.): Old English stæf (plural stafas), "walking stick, strong pole used for carrying, rod used as a weapon, pastoral staff," probably originally *stæb, from Proto-Germanic *stabaz (cognates: Old Saxon staf, Old Norse stafr, Danish stav, Old Frisian stef, Middle Low German and Middle Dutch staf, Old High German stab, German Stab, Gothic *stafs "element;" Middle Dutch stapel "pillar, foundation"), from PIE root *stebh- "post, stem, to support, place firmly on, fasten" (cognates: Old Lithuanian stabas "idol," Lithuanian stebas "staff, pillar;" Old Church Slavonic stoboru "pillar;" Sanskrit stabhnati "supports;" Greek stephein "to tie around, encircle, wreathe," staphyle "grapevine, bunch of grapes;" Old English stapol "post, pillar").

As "pole from which a flag is flown," 1610s. In musical notation from 1660s. Sense of "group of military officers that assists a commander" is attested from 1702, apparently from German, from the notion of the "baton" that is a badge of office or authority (a sense attested in English from 1530s); hence staff officer (1702), staff-sergeant (1811). Meaning "group of employees (as at an office or hospital)" is first found 1837. Staff of life "bread" is from the Biblical phrase break the staff of bread meaning "cut off the supply of food" (Lev. xxvi:26), translating Hebrew matteh lekhem.

The Old English word, in plural, was the common one used for "letter of the alphabet, character," hence "writing, literature," and many compounds having to do with writing, such as stæfcræft "grammar," stæfcræftig "lettered," stæflic "literary," stæfleahtor "grammatical error," with leahtor "vice, sin, offense."
tablature (n.): type of musical notation for lute or stringed instrument, 1570s, from French tablature (1550s), from Italian tavolatura (also Medieval Latin tabulatura), from Late Latin tabulare, from Latin tabula "table, list, schedule" (see table (n.)). "It differed from the more general staff-notation in that it aimed to express not so much the pitch of the notes intended as the mechanical process by which on the particular instrument those tones were to be produced" [Century Dictionary].