The hymns of the mass

Despite my regret at the loss to the Reformed churches of the ordinary of the mass, I must acknowledge that some of its components do occur in our hymnals in metrical form at least. For example, the Christian Reformed Church's Psalter Hymnal contains a metrical Gloria familiar to everyone, "All Glory Be to God on High"; Reginald Heber's "Holy, Holy, Holy" (Sanctus); and "O Christ, Thou Lamb of God" (Agnus Dei). However, these are not sung as often as they should be in our liturgies.