Gaggero was born in Italy. He studied percussion and conducting with Andrea Pestalozza, cimbalon with Márta Fábián in Budapest. He studied percussion further with Edgar Guggeis and Rainer Seegers at the Hochschule für Musik Hanns Eisler Berlin, where he graduated a solo diploma with distinction.[1] He came to Ukraine as a performing percussionist around 2012, and was impressed by the quiet attention of the audience, listening like to a spiritual message ("geistige Botschaft").[2] He co-founded and directed the Ukho Ensemble Kyiv for contemporary music in 2015. He has taught cimbalon and percussion at the Conservatoire de Strasbourg, as the only full professor of cimbalon in Western Europe.[1]
The orchestra remained in Germany in exile, in Gera.[9] On 24 August 2022, Ukraine's National Day, Gaggero conducted them as part of an open-air concert in Gera's Hofwiesenpark.[10]
^ ab"Ukrainische Musik in Zeiten des Krieges / Das Kyiv Symphony Orchestra gastiert in der Philharmonie Berlin" (in German). Berliner Philharmoniker. 2022. Archived from the original on 22 April 2022. Retrieved 22 April 2022. Borys Ljatoschynskyj... erregte mit seiner Musik immer wieder das Missfallen des Sowjet-Regimes. So musste er das Finale seiner Dritten Symphonie, das das Motto »Der Friede wird den Krieg besiegen« trug, komplett umarbeiten. Das Kyiv Symphony Orchestra stellt uns das Werk in seiner Urfassung von 1951 vor. (Borys Lyatoshynskyj... repeatedly aroused the displeasure of the Soviet regime with his music. For example, he had to completely rework the finale of his Third Symphony, which bore the motto 'Peace will conquer war'. The Kyiv Symphony Orchestra presents the work in its original version from 1951.)