The original published music for this Mass did not have an Alleluia. A kind correspondent last year sent me a beautifully printed version of music he transcribed from a hand written original sent to him by Paul Taylor.
The refrain uses the motif of the Memorial Acclamations:
Alleluia x5
The verses are chant – the first line pitching the notes as A until the last 3 notes go G, Bb, A and the second line again on A until G, F, F.
We happily use his mass every week and use the Celtic Alleluia instead, as did my last parish. I blogged the mass here.
I don’t know the status of the Alleluia but I figure it must be out there as I have received inquiries.