The compositions of Alejandro Vivas, both original pieces for choir or for symphony orchestra in a classical style as well as his arrangements - in a spectrum that covers both a symphonic and choral repertoire as well as contemporary styles: jazz, soul, gospel, children’s music, pop... - have been released and played by multiple soloists (Ainhoa Arteta, Estefanía Perdomo, Fabio Barrutia, Florencia Aragón, Luz Mª Bobadilla, Juan Manuel García-Cano, Nuria Elosegui) and national and international orchestras (National Symphony Orchestra of Paraguay, Lithuanian Chamber Orchestra, Metropolitan Orchestra of Madrid, Chamartín Symphony Orchestra, Alfredo Kraus Choir, Talía Choir, Madrid Chamber Orchestra, Laurus Freestyle Duo, Son-Brass Brass Band, Entropía Quartet, Amadeus Choir, Camerata Cantabile...). 


Three of his projects have been recognised as pioneering as they bought to the symphonic stage (National Auditorium of Music in Madrid) for the first time in the history of Spain, programmes with arrangements for the choir and orchestra, something which had never happened before in the classical music scene: jazz and soul (concerts recorded live and available on CD), children’s music played with toys instruments in the multi-award winning event The concert of toys for the multinational Toys R Us or, in Autumn 2014, a programme of Latin American rhythms including a live “Batucada”.


One of his more recognised recent works was the original soundtrack for the film The Escorial Conspiracy (Antonio del Real, 2008), a major feature film for which he wrote, orchestrated and recorded an exquisite score full of moving moments provided by the Spanish soprano Ainhoa Arteta as a soloist, the Metropolitan Orchestra of Madrid and the Talía Choir.