A native of Lima, Peru, Elmer Churampi began playing the trumpet when he was 4 years old with his father who is also a trumpet player. Elmer was invited to be part of the National Youth Orchestra of Peru when he was 8 years old. He played as a soloist three times with the National Symphony of Peru at the ages of 7, 8, and 9. Elmer played such pieces as Carnaval de Venecia, the Haydn Trumpet Concerto, and Arutunian Trumpet Concerto. When he was 10 years old, he was accepted to the National Conservatory of Music from Peru. Elmer was invited to be part of the professional orchestra of the Conservatory of Peru as a second trumpet when he was 13. At the age of 14 he played concerts with the Opera Orchestra from Peru called Orquesta de los Reyes.
When he was almost 15, he attended the Interlochen Summer Camp in 2010 with a full scholarship, playing first trumpet in every concert. Elmer was accepted to the Interlochen Arts Academy with a full scholarship in 2010, and studied for 3 years there with Ken Larson. During that time, Elmer won competitions such as the Young Artist in 2013, Jack Kent Cooke Award in 2013, and the Interlochen Young Artist Award in 2013. Elmer was also interviewed and featured on the radio program From the Top that year. He was also invited by Maestro Mark Gould and Jen Lindemann to perform at the Banff Center of Arts in the brass festival in Canada 2013. In 2014 during his freshman year, Elmer won the concerto competition at New England Conservatory, and also won the MTNA brass competition in Chicago. In 2015 and 2016, Elmer won first place in the National Trumpet Competition in the undergraduate division. He also won the Young Artist brass award in Texas.
Currently Elmer is studying at the New England Conservatory in his 4rd year with Tom Rolfs, principal trumpet in the Boston Symphony Orchestra.