Concert performer, educator, composer, arranger, organizer, artistic and musical director... Anyone wishing to embrace the prodigious diversity of activities of Vincent Beer-Demander risks an inevitable vertigo. In his hands, the small lute is caught in a game of mirrors, revealing unexpected facets, a sparkling diffraction of possibilities: from Vladimir Cosma to Régis Campo, from André Minvielle to Richard Galliano, the explored galaxy is in constant expansion, with Vincent Beer-Demander refusing to impose a limit on his insatiable and continually renewed curiosity. THE PLECTRUM ORCHESTRA OF THE SOUTHWEST L'OAPSO was created in 2007 in Tarbes by Maryse and Alain Sérès, who were leading a mandolin ensemble and wished to broaden the repertoire while bringing together mandolinists and guitarists from the Greater Southwest.