The use of two reciting tones in Gregorian psalmody may derive from Gallican chant. Another element of Gregorian chant not found in Roman chant, which may reflect Gallican conventions, is the "Gallican cadence," in which the final neume, found only in Gaulish sources, is an upward step whose second pitch is repeated, such as C-D-D.
The application of two reciting tones in Gregorian psalmody might have originated from Gallican chant. A distinctive feature of Gregorian chant not present in Roman chant, which could reflect Gallican practices, involves the "Gallican cadence." This cadence includes an upward step final neume found only in Gaulish sources where the second pitch is repeated, such as C-D-D.