In addition, it is confirmed that 'Kurokawa' (also known as Kurokawa Ennen (singing and dancing performed by priests and pages after Buddhist services in temples, which started from the middle of the Heian era)), which is not performed nowadays, was written by Zenpo, and there seem to be many music pieces made until his late middle age, which were removed, disposed of, or scattered.
他にもまた現在演じられない「黒川（黒川延年）」が禅鳳作と判明しており、廃絶・散逸してしまった壮年期までの曲もまだ複数あると見られている。