Feast: In Purificatione Beatæ Mariæ Virginis
Melody from LH19 (not 83) and rsigns from LH83. Ps. tone from Sandhofe, LH has the simple tone.
The Si in Deo should be of the same height (flat or natural) as the Tone 4 festivus incipit.
=> to be reviewed when we have settled the height of Si in this tone