We're working on a page on our website that will have PDFs of all the chants in the Spanish Missal, similar to the page that ICEL has on its website with the chants for the English missal. I can't promise when it will be ready, but perhaps in a month or so. Our Spanish Missal will have more of these chants than any other Spanish Missal, and the content will be extremely close to what's found in the US English Missal.
We've been told that National Association of Pastoral Musicians (NPM) plans to prepare a Spanish version of the pages they prepared containing recordings of those chants. I'm not sure how quickly that project is progressing -- you could contact them to find out.
Overall, however, the transition to the new Spanish Missal is nowhere near as drastic a change as was the transition to the 3rd edition of the English Missal. There are very few changes to the Ordinary of the Mass, and very very little that affects the words spoken by the faithful. Many of the musical settings done by private composers that have been used for years can still be used, though it might be important to verify that on a case-by-case basis. (I have the impression that there are musical settings that use unauthorized versions of the Gloria, for example... they shouldn't have been used to begin with. I hope the release of an official US Spanish Missal will help eliminate these sorts of things -- the texts need to be accurate.)
Música para el Misal Romano, Tercera Edición
Introducción — Introduction
La siguiente música y textos se pueden reproducir gratuitamente en forma impresa con fines no comerciales, en publicaciones que no están a la venta, en parroquias, diócesis, escuelas y comunidades religiosas, siempre que el reconocimiento de copyright se incluya al pie de cada página.
The following music and texts may be reproduced free of charge in printed form, for non-commercial purposes, in publications not for sale, by parishes, dioceses, schools, and religious communities, provided that the copyright acknowledgment which appears at the foot of each page is included. (For English-language chant files, see Music for the Roman Missal. . . , provided by the International Commission on English in the Liturgy.)
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