Tomás de Santa María: Arte de tañer fantasía- free download http://libros.csic.es/product_info.php?products_id=1290
Antonio de Cabezón, new edition: https://www.baerenreiter.com/shop/produkt/details/BA9270/
Francisco Correa de Arauxo, Facultad Orgánica, free download http://libros.csic.es/product_info.php?products_id=997
Fray Juan Bermudo: Obras para teclado https://ifc.dpz.es/publicaciones/ver/id/2439)
Antología de organistas españoles has a third volume: file:///C:/Users/user/Downloads/Antologia_de_Organistas_espanyoles_sigloXVII_Tomo_III_1965.pdf
Joan Baptista Cabanilles: The Opera Omnia arrived to volume X, and I to VI free to download: https://botiga.bnc.cat/?s=Cabanilles&post_type=producthttps://www.elargonauta.com/partituras-y-ediciones-criticas/musica-de-tecla-valenciana-i-juan-bautista-cabanilles/1766/ and there are four volumes more at Tecla Valenciana:
Jusepe Ximénez: Obras para teclado https://ifc.dpz.es/publicaciones/ver/id/2587
Study editions of works by Cabanilles and Bruna: https://www.institutodelorganohispano.es/publicaciones-2/
Francesc Espelt, organ works: https://www.trito.es/en/shop/article/6087/mass-versets
Gabriel Menalt, organ works: https://www.trito.es/en/shop/article/20324/complet-works-for-organ
José de Torres (1670 ca. - 1738) organist of the Royal Chapel in Madrid, samples of interest to understand the stylistic development in Spain: http://editorialalpuerto.es/libros/obras-para-organo-de-jose-de-torres-vol-i/9788438104422/
José Elías, the first key collection for the development of the Spanish organ style: https://www.trito.es/en/shop/article/6177/24-organ-workshttps://botiga.bnc.cat/?s=El%C3%ADas&post_type=product The second one (Obras entre el antíguo y moderno estilo) was edited in the volumes I A and B. The volumes II A and B contain just versets, early compositions from E-Mn, M 812 (dated 1717). For now, you will find more of him here:
Francesc Mariner, keyboard works: https://www.trito.es/en/shop/article/5616/harpsichord-works
Domenico Scarlatti: rwo unica once arranged for the piano by Enrique Granados- and one more newly found: https://www.trito.es/product,es/Tres-sonates-inedites/TR00870 )
José de Nebra: Autograph works combining Frech, Italian and Spanish styles., essential for the understanding of the top Spanish keyboard music of the 18th century (Albero, Soler): https://www.utorpheus.com/index.php?route=product/product&product_id=3612
Sebastián de Albero: 30 sonatas, 6 Recercata Fuga y Sonata, new editions: https://arshispana.com/es/70-tecla
Antonio Soler, Three inedit sonatas of his Op. 5: https://ifc.dpz.es/publicaciones/ver/id/3697
Nine inedit sonatas more from the Villahermosa manuscript: Nueve sonatas inéditas (daireaediciones.es)
Rafael Anglés, 5 Pasos for organ: http://libros.csic.es/product_info.php?products_id=1400
Melchor López, organ book of 1781: https://www.ars-antiqva.com/libro/lopez-melchor-libro-de-organo-de-melchor-lopez-1781_429
Carlos Baguer, keyboard transcriptions of some of his symphonies: http://libros.csic.es/product_info.php?products_id=1384
Portuguese sonatas of the late 18th century: https://ifc.dpz.es/publicaciones/ver/id/3272
Nicolás Ledesma, for free download: https://ifc.dpz.es/publicaciones/ebooks/id/3222