e began his bandoneon studies with Domingo Mattio, later he continued with Julio Pane and Néstor Marconi. His father, an amateur musician, gave up bandoneon playing and gave his instrument to Walther when he was eight, when he realized his son had an inclination for music.

In 1985 he put together the Sexteto Menor, later Sexteto Sur. In the early 1990 he joined the Osvaldo Pugliese orchestra and that same year he played in the Horacio Salgán orchestra at the show Imágenes, at the Complejo La Plaza. That year he began to make tours of the country and abroad.

In 1993 he won the contest to work as bandoneon teacher and instructor for group practice in the Escuela de Música Popular de Avellaneda, institution that belongs to the Dirección General de Escuelas de la Provincia de Buenos Aires. Presently, he is staff teacher.

He appeared in shows with Atilio Stampone, Osvaldo Berlingieri, Virginia Luque, Raúl Lavié, Anna Saeki, among others. In 1995 he was member of the quintet that accompanied the female singer Adriana Varela and that year he joined the Quinteto para el Nuevo Tango, led by Pablo Ziegler.

In 1996 he appeared at the Luna Park along with Liza Minelli and Julio Bocca. He was also member of the Quinteto 5/4 and with that group he cut a CD with Brazilian singers. In 1998 he recorded a CD entitled Tango Romance with Pablo Ziegler and the Orpheus Chamber Orchestra for the BMG/RCA-VICTOR of New York.

In 1999 he came back to the recording studios to cut another CD along with Pablo Ziegler: Pablo Ziegler Quintet for New Tango for the same label. He also made recordings for different artists and in October that same year Melopea released the CD of the instrumental group formed in 1996 with his other three friend musicians. Such group bears the name Presencia Tanguera and included Ángel Bonura, Hernán Possetti and Germán Martínez.

In 1999 he joined the Ziegler quintet for appearances in Notorius. The following year he appeared at the show Tango Sinfónico, in Sydney (Australia) along with Miguel Ángel Zotto and Pablo Ziegler, at the Sydney Opera House Concert Hall. Later he made a tour of Europe with Tango x 2. In April he was invited to play with Pablo Ziegler and Quique Sinesi in different cities of Italy, Germany, Switzerland, Denmark and Austria.

He appeared at the Club del Vino in Buenos Aires along with Julia Zenko. Later he played with The Royal Philharmonic of London in São Paulo (Brazil), thereafter he appeared at the Festival de Jazz de los Siete Lagos in Bariloche (Argentina), and played in Buenos Aires at venues like the Teatro San Martín, the Universidad de Ciencias Empresariales y Sociales (UCES), Ópera Prima and Radio Nacional, with the Ziegler quintet.

He appeared at the Umbria Jazz Winter Festival in Orvieto (Italy) as part of the show Tango Swing and Passion, along with the quintet led by Pablo Ziegler, also with the trio (Ziegler, Ragazzi, Castro) and Paquito D’Rivera.

In January 2001 he appeared with the Ziegler quintet at the Festival de Lapataia in Punta del Este (Uruguay). In February, along with Miguel Ángel Zotto and Pablo Ziegler, he played in three concerts with the soloists of The Sydney Symphonic Orchestra, at the Sydney Opera House Concert Hall.

Always along with Ziegler, he appeared at the Festival de Tango at the Terraza del Centro Cultural Recoleta en Buenos Aires, and later with the Symphony Orchestra of Stavanger in Norway and a tour of several cities of Denmark, Sweden, Germany, Switzerland, Austria, Luxemburg and Italy. Thereafter, with the Ziegler Tango Trio, in Tobago (Buenos Aires) and traveled to Israel to appear with the Ziegler quintet in Haifa, Tel-Aviv and Jerusalem.

In 2002 he played at the Festival de Tango de Buenos Aires at the Teatro Alvear, and started another tour of Germany and Austria, as guest of Ziegler and Sinesi. That year he recorded for Enja Records a CD, Bajo Cero, as guest artist of Pablo Ziegler and Quique Sinesi. He went on as sideman in several appearances Ziegler made in Buenos Aires.

In June 2002 he played as soloist in the “operita” María de Buenos Aires, under the musical direction of Pablo Ziegler at theaters of Bologna and Ravenna. He later began, with the Ziegler quintet, a tour of Switzerland, Germany, Denmark, Netherlands and England. Appearances in Argentina, Uruguay, Manchester (Great Britain) and a tour to promote the CD Bajo cero throughout Europe.

He continued working with the Esteban Morgado quartet, Adriana Varela and Juan Dhartés and played along with Ziegler, Héctor Console, Fernando Suárez Paz and Horacio Malvicino, at the concert to pay homage to Astor Piazzolla at the Teatro de la Ciudad, in Mexico, with pieces by Piazzolla and Ziegler with the symphony orchestra of Mexico.

In October 2005, as soloist, he appeared with the Philharmonic Orchestra of Hong Kong at the Latin Festival, playing the Astor Piazzolla’s double concerto for bandoneon and guitar.

In December that same year he won the Grammy Latino, to the best tango album for the disc Bajo cero, in trio with Quique Sinesi and Pablo Ziegler. After this international award, he was nominated on several occasions: for the album Buenos Aires Report (in trio with Pablo Ziegler), Amsterdam meets New Tango (with the Amsterdam Metropol Orchestra) and for an album with the guitarist Esteban Morgado.

From 2002 he was part of the Tangoloco project, directed by Daniel García, and cut recordings with this group.

In 2011 and 2012 he recorded three albums with different settings. As trio, with Sinesi and Ziegler (recorded in Bonn, Germany); again as trio with Diego Sandullo (guitar) and Ricardo Cánepa (double bass)recorded the album Amagando, in Buenos Aires. His latest project in quartet is Avant Garde Buenos Aires, with Horacio Mono Hurtado, Facundo Barreyra (percussion) and Quique Sinesi, released by Acqua Records.

Thereafter he formed a trio with Quique Sinesi and Mono Hurtado, called Área Buenos Aires and they have played in several festivals and recitals either in Buenos Aires or in other provinces. Later he made a tour of Germany, Austria, Switzerland and Sweden to present their latest CD Desperate Dance, recorded in Bonn (Germany) with Pablo Ziegler and Quique Sinesi.

In the mid- 2015, he worked in a project with the Scotch musician Fraser Fitield, to blend Celt music and its instruments with tango tradition. Along with Walther the members of the Área Buenos Aires trio, Quique Sinesi and El Mono Hurtado also played. The result of that collaboration was a CD.