He has composed more than 15 rags within the last 20 years. As a piano soloist, he has participated in the San Antonio Ragtime Festival (2010 and 2011) and the West Coast Ragtime Festival since 2012. He was a judge at the San Antonio young ragtime performers contests (2011 and 2013), and brought piano ragtime recitals to Houston (2011, 2013), San Antonio (2010, 2011, 2012 and 2013) and Lima, Perú (2013).
In Buenos Aires he performs recitals in many opportunities, as piano soloist, as choir director, and as piano performer in jazz bands or for silent movies. He also gives talks about ragtime, tango and jazz origins, and makes some related musicals with singers and chorus. His musical El ritmo del Ragtime is expected to be presented next year. Recently he also formed the "Buenos Aires Ragtime Trio" along with a banjoist and a tubist.
He is the director of the "Buenos Aires International Ragtime Festival" which took place in that city, November 2014 and 2015. A third festival is planned for May 2017.
In another vein, Pallejá is an engineer at the University of Buenos Aires and a Ph.D of the Valencia Politechnique University. He belongs to the Engineering and Geographic Argentine Academies.