He has worked with soloists of the stature of Tzimon Barto, Charlotte Margiono, María Bayo, Ernesto Bitetti, Veronique Gens, Alicia de Larrocha, Rudolf Buchbinder, Aldo Ciccolini, Wolfgang Holzmair, Josep Colom, Iris Vermillion, the Labéque sisters, Nicolaus Lahusen, Agustín Leon Ara, Joaquín Achúcarro, Valentin Gheorghiu, Anthony Rolfe Johnson, Gyorgy Sandor, Alicia Nafé, Joaquín Soriano, María Orán, and Frank Peter Zimmermann, amongst others.

[1] Zumalave conducted a pan-European choir of 90 young singers during a highly successful tour to commemorate Santiago de Compostela as European City of Culture 2000 [2] In February 1995 he was inducted to the Royal Galician Academy of Arts.

Journalist Ruiz Coca reviews in his paper Ya: "the commitment of the musicians was complete and the results highly promising mainly judging by the flexible musicality with which the conductor faces the instrumental set... homogenous, sharpened and unanimous sound... the extraordinary quality of the playing served the clear concepts the maestro has of the scores (which he conducts from memory) ... the happiest moment occurred in the Romantic Serenade by Dvorak, which Zumalave led with natural fluidity and security.

[1] Of another remarkable concert, his presentation at the Auditorio Nacional in Madrid, Enrique Franco, music critic from El País, wrote: "With a not at all populist or easy program, full of risky choices, maestro Zumalave made his debut conducting the National Orchestra of Spain.

He is a sensible musician of great responsibility, a virtue made patently obvious in his interpretations of the Villa-Rojo premiere, and in Rachmaninov's Second, the latter an excellent version, the most detailed and conceptually transparent of the evening, and one which was rewarded by the public with a deserved standing ovation.