Marco Galiero began studying piano and guitar in 1990. From 1996 to 2000, he studied electric bass with a private teacher, laying the foundations for his future musical career.

In 2003, he participated in a workshop held by John Patitucci at the "Saint Louis College of Music" in Rome. Between 2002 and 2004, he deepened his study of the electric bass with Maestro Gianfranco Gullotto, also at Saint Louis. In 2005, he attended a training course held by Dario Deidda at the Conservatorio di Napoli.

From 2004 to 2008, he studied harmony and improvisation techniques with Master Valerio Silvestro at the "Mad School" in Naples. Between March 2007 and June 2008, he attended a training course in "Learning Psychology" with Dr. Valerio Salzano.
In 2008, he graduated in "Jazz and Performance" from the "Civica Scuola di Musica" in Capannori, achieving the highest marks.
In 2009, he studied jazz guitar for three years at the "G. Puccini" conservatory in La Spezia.

Since 2000, Marco has actively participated in numerous music festivals, both in Italy and abroad. He has been part of various tours, including the Conad tour with Peppe Vessicchio's orchestra, and has participated in prestigious festivals.

He has collaborated live and/or in the studio with numerous Italian and international artists, including Frank Gambale, Robben Ford, Mike Stern, Andy Timmons, Paul Gilbert, Alain Caron, Carl Verheyen, Guthrie Govan, and many others.