For 'Edo nobori (the missions to Edo),' boys were trained in musical repertoire by music teachers before attaining manhood and, participated in Uzagaku ensembles as 'Gakudoji (lit. child musicians).'
「江戸上り」では、元服前の男児が、楽師から楽曲を仕込まれて、「楽童子」(がくどうじ)として御座楽を演奏した。