Many modern composers other than Britten have written, and continue to write, countertenor parts, both in choral works and opera, as well as songs and song-cycles for the voice. Men's choral groups such as Chanticleer and The King's Singers employ the voice to great effect in a variety of genres, including early music, gospel, and even folk songs. Other recent operatic parts written for the countertenor voice include Edgar in Aribert Reimann's "Lear" (1978), the messenger in his "Medea" (2010), Prince Go-Go in György Ligeti's "Le Grand Macabre" (1978), the title role in Philip Glass's "Akhnaten" (1983), Claire in John Lunn's "The Maids" (1998), the Refugee in Jonathan Dove's "Flight" (1998), Trinculo in Thomas Adès's "The Tempest" (2004), the Boy in George Benjamin's "Written on Skin" (2012) and several others (see Roles in opera below).