How to encode "Carm. gen." reference record

[WolfgangDrescher]

I have some pieces that have their own number (encoded with !!!ONM) but they use the same melody as in another piece. In the score this is encoded with Carm. gen. 2. (Carmini genus).

https://www.digitale-sammlungen.de/de/view/bsb11116252?page=55

https://www.digitale-sammlungen.de/de/view/bsb11116252?page=87

How could I encode this with a humdrum reference record?

Does something like this look good?

!!!COM: Ulenberg, Caspar
!!!CDT: 1548/12/24-1617/02/16
!!!OPR: Die Psalmen Davids
!!!ONM: 10
!!!ONM-carm-gen: 2
!!!OTL@@LA: In Domino confido
!!!OTL-incipit@@DE: Mein hertz und můt mit festem trawen

[craigsapp]

Yes, that looks good.

One thing to think about would be to call it !!!ONM-carmgen: I use the - suffix to add subcategories of information, and in this case "carm. gen." is a single subcategory, not a more broader "carm" category that is further qualified by a "gen" sub-subcategory.

[WolfgangDrescher]

Okay thank you, I will use your suggestion.