Jorge Ortiz (1912-89) was an estribillista (singer who only sings the refrain) for Rodolfo Biagi for 1940-43 joining Miguel Caló for 1 year and returned to Biagi in 1945. 

Read his biography on todotango.

Discography (chronological order)

1940

Todo Te Nombra (Everything Calls Your Name)
Watch🎞 Una Noche De Poesía!

Quiero Verte Una Vez Más (I Want to See You One More Time)

Music: Mario Canaro 1939 Lyrics: José María Contursi Translation: Derrick Del Pilar

Guapo Y Varón

Callecita de Mi Barrio (Little Street of My Neighborhood)

Marcas

Misa de Once (11 O'Clock Mass)

No Le Digas Que La Quiero (Don't Tell Her That I Love Her)

Yo También (Me Too)

1941

Pájaro Ciego (Blind Bird)

Será Lo Mejor

Humillación (Humiliation)

Zaraza

Romántico Bulincito

La Marcha Nupcial

Ya Lo Ves (So You See)

Ahora No Me Conocés (Now You Don't Know Me)

Carillón de La Merced (Church-bells of Santiago de la Merced)

1942

Calla, Corazón (Shush, Heart)

Catorce Primaveras (Fourteen Springs)

Escuchando Tu Voz (Oyendo Tu Voz)(Hearing Your Voice)

Indiferencia (Indifference)

Si De Mi Te Has Olvidado (If You Have Forgotten About Me)

1943

Señor, Señor (Mister, Mister)

Pueblito de Provincia (Little Provincial Village)

1945

Magdala (Magdalene)

Yuyo Verde (Green Weeds)

Music: Domingo Federico Lyrics: Homero Expósito Translation: Derrick Del Pilar 

Copas, Amigos Y Besos (Drinks, Friends and Kisses)
Music: Mariano Mores Lyrics: Enrique Cadícamo Translation: Felipe & Ayano 

Equipaje (Baggage)
Music: Héctor Artola Lyrics: Carlos Bahr Translation: Felipe & Ayano 

Trenzas (Braids)

Cuando Se Ha Querido Mucho

Soledad, La De Barracas (Soledad, The One From Barracas)

VALS

Por Un Beso De Amor (For A Kiss of Love)

Cuatro Palabras (Four Words)