Since the piece is in French, focus on clear vowel placement. Pay particular attention to the "u" in salue and the nasal vowels in Priez pour nous .
Check sites like CPDL (Choral Public Domain Library) for scores, though specific contemporary arrangements may require a purchase from the composer or publisher. ensemble_vocal_lalliance_je_vous_salue_marie_di...
Listen to the original performance by Ensemble Vocal L'Alliance on streaming services like Spotify or YouTube Music to understand the intended dynamics and "spirit" of the piece. Since the piece is in French, focus on clear vowel placement