Andrea Marcelli was born in Rome on January 22, 1962. He trained formally at the Conservatorio "Licinio Refice" in Frosinone, outside Rome, graduating in 1986 after seven years of classical clarinet study alongside four years of jazz composition and arrangement, and later attended clinics with drummers Tommy Campbell and Peter Erskine. Before that diploma was even finished, he was already working professionally: from 1982 to 1988 he was a featured drummer for Italian state broadcaster RAI Television, playing live variety-show broadcasts that included multiple editions of "Domenica In" with host Pippo Baudo (1982-84), "Il Nastro d'Argento," and a UNICEF telecast from Sicily, largely as part of the St. Louis Big Band directed by Bruno Biriaco (1982-86). Between 1984 and 1996 he also composed and recorded seven CDs of production ("library") music for film, TV and radio for Primrose Music, Flippermusic and Fonit Cetra - purely instrumental, broadcast-use recordings (Discogs tags them Electronic/Ambient and Synth-Pop, not jazz) that ran in parallel with, rather than as part of, his jazz career.

That jazz career took its decisive turn in 1989, when Marcelli moved to the United States, splitting the next twelve years between Los Angeles (1989-97) and New York (1997-2001) before settling in Berlin, where he has lived since 2001. The U.S. move came with early validation: Marcelli was granted an O-1 "Alien of Extraordinary Ability" visa in the field of jazz, and in Los Angeles he recorded his first two albums as a leader for the major jazz label Verve. Silent Will (Verve Forecast, 1990/91) and Oneness (Verve Forecast/Lipstick Records, 1992/93) are both Discogs-documented at the personnel-credit level with an extraordinary cast: soprano saxophonist Wayne Shorter, bassist John Patitucci, guitarists Allan Holdsworth and Mike Stern, tenor saxophonist Bob Berg and pianist Mitchel Forman on Silent Will; guitarists Allan Holdsworth and Chuck Loeb, bassists Marc Johnson, Jimmy Johnson and Gary Willis, guitarist Ralph Towner and vibraphonist Mike Mainieri on Oneness. Silent Will reached #8 on Tower Records' Pulse magazine top 10 jazz CDs of 1991 and was named among Jazziz magazine's top jazz picks of 1991.

A planned third Verve-era album, begun in June 1993 with Allan Holdsworth engineering, stalled when Holdsworth was unable to complete it for contractual reasons; the sessions sat unfinished for two decades until Italian guitarist Frank Pilato took over the project, and it was released in 2016 as Stories (ESC Records), credited to Frank Pilato and Andrea Marcelli with bassists Jeff Berlin and Gary Willis and Marcelli's longtime pianist Mitchel Forman - a direct, Discogs-confirmed continuation of the Silent Will/Oneness band. In between, Marcelli was invited back to New York in 2004 to record a third album under his own name, Beyond the Blue, released in 2005 on Art of Life Records (USA/Canada), 55 Records (Japan) and BHM Music (Europe), reuniting him with Mitchel Forman alongside bassist Eddie Gomez, guitarist Mike Stern and saxophonist Bob Mintzer - again fully confirmed via Discogs credits on both the U.S. and Japanese pressings.

Since settling in Berlin in 2001, Marcelli's most sustained working relationship has been with German pianist Ekkehard Wölk, documented across three Discogs-verified albums with the Ekkehard Wölk Trio - Songs, Chorals and Dances (2005, Nabel), The Berlin Album (2011, Jazzwerkstatt) and Pictures in Sounds (2019) - plus a separate 2008 recording, Homage to Nino Rota (Splasc(h) Records), credited to the Ekkehard Wölk Ensemble Featuring Andrea Marcelli. He also recorded a duo-adjacent studio project with brothers Simon and Markus Stockhausen, nonDuality (2005, Aktivraum), and appeared as drummer on American pianist Greg Burk's Soul Note Records date Berlin Bright (2007) alongside bassist Jonathan Robinson and saxophonist Ignaz Dinné. In 2008 he recorded his fourth leader album, Sundance, a trio session with Danish pianist Thomas Clausen and Italian/German bassist Davide Petrocca, released in Japan on 55 Records and worldwide by the Danish label Storyville Records in 2012.

Marcelli has performed on five continents - by his own account in more than 30 countries, including the USA, Japan, India, Brazil, South Africa, Zimbabwe, Mozambique, Tunisia, Russia and across Western and Northern Europe - frequently under the sponsorship of Italian Cultural Institutes, the Goethe-Institut and national jazz federations in Denmark, Finland and Estonia. In 2002 he won two awards at the Berlin Jazz and Blues Awards, and that same year he played on the soundtrack of the Oscar-nominated German film Good Bye, Lenin! alongside composer Antonello Marafioti. He produced Spanish pianist Chema Vílchez's debut album El sueño del navegante (1995/2001), named best jazz album of 1996 by Spain's Radio 1, and has produced records for Filippo Cosentino and others. He also has an extensive teaching history, giving workshops and masterclasses at conservatories and universities on five continents, including UCLA's Schoenberg Hall, Arizona State University, the University of Houston, the Norwegian Academy of Music in Oslo, Sibelius Academy in Helsinki, the Rhythmic Music Conservatory of Copenhagen, and, in 2018, a six-week residency as the first "Musician in Residence" at Lingnan University in Hong Kong.

Marcelli has continued recording into his fourth decade in jazz: The Invisible Child (Da Vinci Jazz, 2018), a compilation of live and previously unreleased material from 2000-2016, and Abstract Percussionism (Phantom City, self-released, 2023), a solo avant-garde percussion recording supported by a Berlin Musikfonds e.V. grant and a GVL "Neustart Kultur" grant. He continues to lead the Mauer Blues Five and to perform regularly in Berlin with Ekkehard Wölk and Kristoff Becker, including live scoring for silent-film screenings.

Marcelli's core musical identity is jazz fusion in the Los Angeles studio-scene tradition of the late 1980s and early 1990s: his two Verve albums sit alongside contemporaries like Chick Corea's Elektric Band and the Yellowjackets, built on electric bass, synthesizer textures and a cast of first-call fusion soloists (Allan Holdsworth, Mike Stern, Wayne Shorter). That fusion foundation runs through Oneness, Beyond the Blue and Stories, all recorded with overlapping personnel across more than two decades.

Alongside that thread, his two decades in Berlin have pulled him toward a more acoustic, chamber-scaled post-bop language, most audible on the Ekkehard Wölk Trio recordings and the piano-trio format of Sundance. A third, more recent strand is avant-garde and free-improvised percussion, developed on 2023's Abstract Percussionism, a solo digital recording built entirely from percussion sound sources rather than a working band - a return, in spirit, to the classical-percussion training that ran alongside his jazz-drumming apprenticeship from the start.