Although Deiro's substantial musical contributions were forgotten in no small part due to his brother's promotional claims and the passage of time, beginning in 2001 there has been a revival of interest in the music of Guido Deiro, primarily due to the efforts of his son, Count Guido Roberto Deiro, and his collaboration with American concert accordionist, historian and author Henry Doktorski. The two have worked together to (1) create a website dedicated to Deiro which went online in 2001, (2) record the complete works of Deiro: "Vaudeville Accordion Classics", Bridge Records 9138 A/B (2003), (3) release "The Complete Recorded Works of Guido Deiro, Vols. 1, 2, 3 and 4", Archeophone Records 5012, 5014, 5018