||Notes from Snow 1977, no. 239: "CSM 15 and Anglés's musical transcription of it come under attack. Anglés used, as a base for his work, Escurial J.b.2, while F.L. is convinced that the Toledo codex of the CsM (now at the BN) offers a better means of capturing the correct rhythmic notation of the cantiga. In order to show how his own system is preferable to Anglés's he prints the latter's transcription next to his own and provides photographs of the actual medieval notations from the MSS. Musicologists will decide this, but two things weaken F.L.'s claims to superiority: his system is not really spelled out for us; and we never learn what is his critical basis for telling what is musically authentic in terms of medieval sounds."