OK, here is an approximation good for fingerpicking while singing. It is in the key of C, for easy transposition with capo. A - ve Ma-ri - a, C C/A G G7 Am gra-tia plena. G G7 C Ma-ria, gratia ple-na Am B7 Ma-ria, gratia plena Dm Am Ave, ave dominus, G A D Dominus Tecum. D7 G Benedicta tu in mulieribus, G7 C Et benedictus G7 C Benedictus fructus ventris tui G7 E7 Dm Ventris tui, Jesus. Dm F7 G Ave Maria. C C/A G G7 C (closing) C C(higher arpeggio) F Fm C