and recording artist Yuri Landman built a portable electric long-string instrument. A three-minute solo that he recorded in a garden on this instrument can be heard on YouTube, uploaded in 2011. Sound lab and research centre Sonoscopia in Porto, Portugal has a permanent electric amplified long-string instrument mounted to the wall in the hall of their building. See also Tromba marina References External links Ellen Fullman's Long-String Instrument Photographs from the Flanders Festival, Brussels, Belgium, 2003 Fullman, Ellen. The Long-String Instrument. Netherlands: Apollo/R&S Records, 1985. (worldcat) Experimental string instruments