Man pages matching name genome::model::tools::music::smg in section 3pm:

Genome::Model::Tools::Music::Smg.3pm.en	debian 10 / libgenome-model-tools-music-perl
Genome::Model::Tools::Music::Smg.3pm.en	debian 11 / libgenome-model-tools-music-perl
Genome::Model::Tools::Music::Smg.3pm.en	debian 12 / libgenome-model-tools-music-perl