After Tim's departure from Los TNT, Nelly and Tony became a duo. In 1968, after travelling across South America and spending two years in Venezuela, Tony moved to what would eventually become his adoptive homeland, Puerto Rico, when "Nelly y Tony" were hired by Puerto Rican promoter
Alfred D. Herger to appear on his popular youth television shows. "Nelly y Tony" would perform together until 1974, when Nelly married a Puerto Rican surgeon. She retired from pop music and eventually moved to the
United States. While performing with his sister Nelly in New York City's
Teatro Puerto Rico in 1973, Tony was introduced to New York-bred and Puerto Rico-born vocalist Roberto Tirado who suggested that he compose a hit song for the latter's idol
Lucecita Benítez, who was going through hard times in her career. Tony obliged, and with poet David Ortiz, wrote her number one career-refreshing hit, "Soy De Una Raza Pura" which would be the only song that Lucecita Benítez would claim as her opening song for many years later on. While he was almost as successful in Puerto Rico singing pop tunes with his sister as he was in other countries, Tony Croatto was very much impressed by Puerto Rican
jíbaro singers, who could improvise
décimas on the spot, something that reminded him of the
payadores of Uruguay and Argentina he used to listen to when he was growing up. He also found a richness in musical traditions in Puerto Rico that, he claimed, was extremely rare elsewhere in Latin America. He started singing Puerto Rican folk songs with Nelly, and noticed that their pop treatment of these songs was far more in demand that the pop material they would normally sing together. He was also well impressed by the Puerto Rican people, who — he claimed — treated him better on his first night on the island than what he had experienced touring extensively in a country or two. That, and various personal reasons, persuaded him to stay in Puerto Rico for good; he even went as far as saying he was a "born-again Puerto Rican."
Haciendo Punto en Otro Son Croatto formed the
nueva trova musical group,
Haciendo Punto en Otro Son, particularly famous for its
protest songs. He recruited Puerto Rican singers
Silverio Pérez, Josy Latorre, Irvin García, and Nano Cabrera. Pérez's strength was in jíbaro music, Latorre was a classically trained singer, Cabrera was a rocker and García was also a strong
salsa percussionist and singer, but Croatto's vast experience with pop music made all the difference in the group's success. Croatto was instrumental in both the musical and technical aspects of the group, not only as singer, guitarist and keyboardist, but also as arranger, producer and studio technician. He founded a record label at the time, named
Artomax, which was financed by
Chucho Avellanet and producer Tomás Figueroa.
Desde Mi Pueblo Parallel to his singing career, Croatto also became a television presenter on
Desde Mi Pueblo, a weekly documentary/variety show that aired weekly on
WIPR-TV. His co-hosts were comedian
Luis Antonio Rivera "Yoyo Boing",
Miss Universe 1985 Deborah Carthy Deu and María Falcón. The program's concept involved traveling to a different municipality of Puerto Rico every week and highlighting all cultural aspects found in each town. Given the fact that Puerto Rico has 78 municipalities, there was enough material to showcase and research over the program's six-year run. Carthy has stated that Croatto was genuinely interested in researching each program carefully, and became far more knowledgeable about Puerto Rican culture than most of the program's producers, co-hosts and film crew. Because of his background as a farmer, Croatto was very much interested in local agricultural issues; he jumped at trying local folklore, particularly jíbaro music,
bomba and
plena variations that were unique to each town or region, "sometimes fearlessly", said Rivera once. In 1983, Croatto had also a similar show on
Telemundo called
Tony Croatto y Tu Pueblo. == Solo career ==