The is not a one-size-fits-all piece. It is best suited for:

Unlike standard classical repertoire (where public domain sheet music is abundant), Libera’s music is contemporary and under copyright. The group is directed by Robert Prizeman, and their arrangements are considered intellectual property. Consequently, you will not find their specific arrangements in the public domain (on sites like IMSLP).

In the vast ocean of choral and classical vocal repertoire, few pieces command the same sense of ethereal reverence as those blending traditional liturgical text with modern harmonic sensitivity. One such piece that has garnered significant attention in recent years—particularly among church choirs and collegiate ensembles—is the composition colloquially known as Sanctus Libera .

You can find various arrangements and PDF versions of "Sanctus" on several music platforms:

If you manage to acquire a PDF of the sheet music, either official or transcribed, here are the musical elements you should expect to see to ensure it matches the Libera style: