Metrical Psalmody

Up to the Edict of Milan (AD 313), the psalms were interspersed with lessons.

By the time of Gregory I (circa 600), the Mass and Office had assumed a fixed shape and antiphonal psalmody (the chanting of a psalm alternately by two choirs) and responsorial psalmody (when the congregation responded to a psalm sung by a cantor) were institutionalized.The distinction between these types later faded.

The stabilization of psalmody between Gregory I and the 11th century is known from the service book for Mass and Office, theoretical writings and the tonaries, which categorized chants by mode and specified the ending of the psalm tone for each antiphon. In Gregorian chant there are eight such tones, one for each church mode.

In the 16th century, Protestant churches encouraged congregational psalm singing by adopting metrical versions in the vernacular. An important early translation was Clèment Marot's, the basis of the Calvinist psalter. A repertory of tunes came into being; these were set in a simple chordal style in collections which included Loys Bourgeois's complete psalter (1563), widely recognized as a standard version. Some later settings were more contrapuntal; Le Jeune and others dropped the tunes and composed what amounted to free motets.

In England, after the Catholic Mary Tudor's reign (1553-8), metrical psalms became popular, the standard psalter being that of Sternhold and Hopkins. Other metrical psalters included that of Archbishop Parker (1567), for which Tallis provided several harmonized tunes.

[In the Roman church only Italy, and to a lesser extent Spain, had any strong tradition in the 16th century of written psalm polyphony. Settings using two alternating choirs ('salmi spezzati'), by Jacquet of Mantua, Willaert and others, were in principle through-composed, permitting a more varied texture. Psalms were used as texts for the new motet repertory evolved by Josquin and his contempories circa 1500. Many settings treat them freely and cannot have been used as liturgical psalms; if sung in church, they must have served a function outside the liturgy. Collections such as Lassus's penitential psalms were probably used domestically as sacred madrigals.]