Bruno De Filippi was born May 8, 1930, in Milan, self-taught on guitar and harmonica after a childhood spent, by his own account, glued to the family radio. He was still a teenager when he co-founded I Campioni, one of Italy's first rock and roll bands, backing singer Tony Dallara and appearing with the group in the 1959 film I Ragazzi del Juke-Box.

The jazz side of his career took shape at the same time, in the same city. Milan's Santa Tecla club on via Santa Tecla was the hub of the local scene through the 1950s and 1960s, and it was there, and around it, that De Filippi built his standing among Milanese jazz musicians. In 1958 he played guitar on the Enrico Intra Quintet's Welcome Mr. Swing (Liberty), a hard bop date with bassist Giorgio Azzolini and drummer Gianni Cazzola, a Discogs-documented personnel credit that puts him in Enrico Intra's band four years before he cut his own first leader date, Bruno De Filippi Al St. Tecla (1962, Bluebell Record), at the club that gave it its title.

In 1959 he composed the music for "Tintarella di Luna," with lyrics by Franco Migliacci, which Mina turned into one of the best-known songs in Italian pop history. He was candid in a 2004 Jazzitalia interview about what that hit, and the composing and session work that followed it, actually bought him: financial security that let him chase the American jazz careers he actually wanted, rather than a rival to them. It also produced one of the best stories in Italian jazz. At a San Remo Festival in the 1950s, De Filippi found himself next to Louis Armstrong during a break in rehearsal and, starstruck, hummed a few bars of "Do You Know What It Means to Miss New Orleans." Armstrong picked it up and sang it back to him as an impromptu duet, then later sent him a signed photograph misspelling his name as "De 'Lilippi."

Through the 1960s, 70s and 80s his guitar and harmonica turned up behind a long list of Italian popular singers, among them Caterina Valente, Johnny Dorelli, Ornella Vanoni, Gino Paoli, Domenico Modugno, Enzo Jannacci, Angelo Branduardi, Pino Daniele, Toto Cutugno, Toquinho, Teresa De Sio, Articolo 31 and Rossana Casale. The jazz connections held too: he plays acoustic guitar, electric guitar and harmonica on Enrico Intra's jazz-funk leader date Paopop (1975, Rifi), and, two decades on, harmonica on Franco Cerri's own En Souvenir De Milan (1995), a tribute to Django Reinhardt led by the guitarist who, alongside Intra, anchored Milan's postwar jazz scene throughout De Filippi's career.

From the mid-1980s the jazz catalog under his own name grew steadily: Harmonica (1985, Dire), arranged by pianist Sante Palumbo; Portrait in Black and White (1989, Solstice Records); and a guest turn the same year on Guido Manusardi's quartet date Jazzt in Time, alongside singer Roberta Gambarini. Then came the partnership that defined his last two decades: American pianist Don Friedman. In New York with Don Friedman Trio, recorded at Media Arts Studio in New York on June 18, 1992, with bassist Jeff Fuller, opened a run of records together that continued through You and the Night and the Music (1995, with Friedman's quartet), Lili Marlene (1996, adding bassist Jeff Fuller and drummer Matt Wilson), You My Love (recorded in New York on December 9, 1997, with Fuller and drummer Billy Hart, and dedicated to his wife Mimi) and, finally, the duo record Alone Together (2002). The Friedman years took him across Europe, North America, Australia, Japan, Indonesia and Hong Kong, and into rooms including Birdland, Town Hall and the Blue Note in New York, Chicago's Green Mill, Miami's Jazz at the Tropics, the Django Reinhardt Festival in Fontainebleau and Jakarta Jazz.

He recorded a duo album of his own in the same period with the guitarist Lorenzo Petrocca, Insieme (1995, Edition Musikat), and, in 2002, an entire program of moon-themed standards, ...Senti Che Lune..., in duo with accordionist Gianni Coscia, produced by Massimo Monti for Golden Map. The set closes a small circle: one of its thirteen tracks is his own "Tintarella di Luna," played forty-three years after he wrote it, alongside standards including "Moonlight Serenade," "Blue Moon" and "Moon River."

Bruno De Filippi died in Milan on January 16, 2010, at 79. A posthumous compilation, His Life in Music (2011, Carosello), followed. In 2022, producer Massimo Monti brought together Santa Tecla Io C'ero (MAP Jazz), a tribute compilation returning to the club where De Filippi's own jazz career began, crediting him alongside Enrico Intra, Franco Cerri, Guido Manusardi, Renato Sellani, Lino Patruno, Paolo Tomelleri, Sante Palumbo and Emilio Soana, the musicians who had defined Milanese jazz alongside him.

De Filippi's own Discogs artist entry describes him as "primarily a jazz musician" who "did venture into popular music," and his career bears that out even though the popular side of it, above all "Tintarella di Luna," reached a far larger audience than any of his jazz records did. His jazz voice split between two idioms roughly forty years apart: the hard bop guitar work of the Enrico Intra Quintet's Milan scene in the late 1950s, and the standards-based harmonica-and-guitar sound he built from the late 1980s onward in trio and quartet settings, most fully with the American pianist Don Friedman. Writing for a 2010 tribute, jazz critic Gerlando Gatto called him "un armonista e chitarrista di rara eleganza," a harmonicist and guitarist of rare elegance, and De Filippi named his own original composition "Soft Drink" as a personal touchstone, calling it his lucky charm.

His own account of his career, given to Jazzitalia in 2004, put the two sides of his working life in a clear order: the pop composing and session work paid for the jazz touring and recording, not the other way around. That is the frame this profile follows in treating him as a jazz artist first, with a separate and very successful career in Italian popular music recorded here in full rather than folded into his jazz catalog.