Ilona Schneider (vox soprano) Diego Caicedo (guitar) El Pricto (alto saxophone) Sandro Manzon (piano) Patxi Varela (drums) Summer heat? Sheer apathy? Vacaciones? There’s a kind of laissez-faire lethargy that descends on Barcelona in August and any musician who prefers to play to packed houses had best take the month off. In other words, we start…