11:10Music MakersProfessor Allegro's World of MusicEpisode 2: In the MountainsBBC Two Duration: 20 minutes Tue 10th May 2005, 11:10 on BBC Two Wales (Analogue)Series exploring musical concepts. In this edition, an investigation of pitch. Featuring a trip to the Andes.GenresLearningMusicBrandMusic MakersSeriesMusic Makers: Professor Allegro's World of Music Source: BBC Online