Male conductors (music)

Aníbal Carmelo Troilo (11 July 1914 – 18 May 1975), also known as Pichuco, was an Argentine tango musician.
Troilo was a bandoneon player, composer, arranger, and bandleader in Argentina. His orquesta típica was among the most popular with social dancers during the golden age of tango (1940–1955), but he changed to a concert sound by the late 1950s.
Troilo's orchestra is best known for its instrumentals, though he also recorded with many well-known vocalists such as Roberto Goyeneche, Edmundo Rivero and Francisco Fiorentino. His rhythmic instrumentals and the recordings he made with vocalist Francisco Fiorentino from 1941 to 1943, known as milongas, were some of the favourites in tango salons. The renowned bandoneonist Astor Piazzolla played in and arranged for Troilo's orquesta típica during the period of 1939–1944.

Gerónimo Giménez y Bellido (10 October 1854 – 19 February 1923) was a Spanish conductor and composer, who dedicated his career to writing zarzuelas, such as La tempranica and La boda de Luis Alonso. He preferred to spell his first name with a "G", even though his name at birth officially began with a "J".
Written in Spanish, a very comprehensive biographical exposition by Ascensión García de las Mozas may be found at the Universidad de Cádiz institutional repository of Research and Learning Objects (RODIN)
https://rodin.uca.es/bitstream/handle/10498/7788/33195031.pdf?sequence=1

Jan Willem van Otterloo (27 December 1907 – 27 July 1978) was a Dutch conductor, cellist and composer.

Othmar Schoeck (1 September 1886 – 8 March 1957) was a Swiss Romantic classical composer, opera composer, musician, and conductor.
He was known mainly for his considerable output of art songs and song cycles, though he also wrote a number of operas, notably his one-act Penthesilea, which was premiered at the Semperoper in Dresden in 1927 and revived at the Lucerne Festival in 1999. He wrote a handful of instrumental compositions, including two string quartets and concertos for violin (for Stefi Geyer, dedicatee also of Béla Bartók's first concerto), cello and horn.