Paul Collins - Banvard's FollyEpisode 5: Solresol and the Prophet of SoundBBC Radio 4 Extra Duration: 15 minutesFirst broadcast: Fri 6th May 2011, 14:45 on BBC Radio 4 ExtraLatest broadcast: Fri 6th Sep 2013, 14:45 on BBC Radio 4 ExtraWhatever happened to Jean Francois Sudre's universal language? The stories of forgotten people read by Andrew Sachs.GenresFactualHistorySeriesPaul Collins - Banvard's Folly Source: BBC Online