Flavio Cappello attained a Diploma in Flute at the Conservatorio G. Verdi in Turin, under the guidance of Arturo Danesin, continued his specialisation with Peter-Lukas Graf at the Académie de Musique in Sion, Switzerland, and with Pierre-Yves Artaud in Como, and participated in chamber music courses and master classes given by Oscar Ghiglia in Turin, Ruggero Chiesa in Verona, and Maurice Bourgue in Como.
He studied composition under Daniele Bertotto.
He completed a Master’s degree at the Conservatorio G. Verdi in Turin with Andrea Lanza and Stefano Leoni, writing his thesis on the Bach family and their flute compositions.
He has worked with numerous orchestras, including the RAI National Symphony Orchestra in Turin and the Orchestra da Camera di Aosta, and has participated in various recordings and television productions.
He has performed intensively in concerts and festivals both in Italy and abroad, in addition to taking part in the staging of shows and plays.
In 2007 he published ‘Suite per 2’, a collection of 27 studies for two flutes or flute and clarinet.
In 2009 the Associazione Flautisti Italiani published the book ‘Alla corte di Federico il Grande. La famiglia Bach e il flauto [“In the court of Frederick the Great. The Bach family and the flute”]’, co-written with Ugo Piovano and Giovanni Battista Columbro.

Seicorde (gennaio-marzo 2015)
‘Fables and Stories’ è concepita come una sorta di suite che comprende cinque brevi composizioni, le quali prendono spunto da situazioni culturali e suggestioni diverse che portano l'ascoltatore a fare un viaggio fantastico nella memoria. ... La scrittura è pertinente ed efficace per tutti e tre gli strumenti senza mai essere troppo complessa di esecuzione. Un bel lavoro, molto utile nel campo didattico, ma anche in quello dell'esecuzione pubblica.

Stringendo Magazine (October 2014)
Italian flautist Flavio Cappello composed this work which was inspired by Schubert's famous Quartet in G major D 96 for flute, viola, cello and guitar which was in itself an adaption. Released in 2002, it was performed for the first time in this version in 2011 ... Complete with score and parts, this work is for an unusual combination of instruments and is suitable for advanced players and professional ensembles. It contains phrasing, dynamics and tempo markings but no suggested fingerings.

Seicorde (gennaio-marzo 2014)
Il presente lavoro, che consiste in un dittico, prende spunto per la scelta dell'organico dal Quartetto in Sol maggiore D96 di Franz Schubert con l'aggiunta del clarinetto, che, oltre a dialogare con il flauto, permette una contrapposizione timbrica ai due archi lasciando alla chitarra il compito di sottolineare le situazioni armoniche e, talvolta, introdurre i vari episodi. ... Un lavoro molto interessante e di grande qualità.