Gregofacsimil + neumes from H + rsigns according to H. Verse from H. Standard Alleluia (change it to that from SG389 p. 184 / E611 p. 106ar ?

Alleluia modified according to the sources listed above, with two rectifications from Do to Si, following the example of the Vidi Aquam: "Et dicens".

cf. pull request: https://github.com/Nocturnale-Romanum/nocturnale-romanum/pull/133

Updated Alleluia following dcrochu's idea: source of the NABC on Alleluia is A/ In die resurrectionis, SG391 p37, https://www.e-codices.unifr.ch/en/csg/0391/37