In Italian, Portuguese, Spanish, French, Romanian, Greek, Albanian, Russian, Mongolian, Flemish, Persian, Arabic, Hebrew, Ukrainian, Bulgarian, Turkish and Vietnam the note names are "do–re–mi–fa–sol–la–si" rather than C–D–E–F–G–A–B. These names follow the original names reputedly given by Guido d'Arezzo, who had taken them from the first syllables of the first six musical phrases of a Gregorian chant melody "Ut queant laxis", which began on the appropriate scale degrees. These became the basis of the solfège system. For ease of singing, the name "ut" was largely replaced by "do" (most likely from the beginning of "Dominus", Lord), though "ut" is still used in some places. For the seventh degree, the name "si" (from "Sancte Iohannes", St. John, to whom the hymn is dedicated), though in some regions the seventh is named "ti".