His father used to fill his leisure time by playing music with a small bandoneon that he owned.
Domingo, still a child, took advantage of his absences, and, entranced, he held the bellows, and out of it, he achieved sleepy phrases.
As for formal musical training, in fact, he had none. For him, it was enough a sensitive vocation and a strong will.
He began as a composer in 1904, with the tango “Unión Cívica”.