Ralph Vaughan Williams made an arrangement for baritone solo and unaccompanied male choir in 1921. Infants have shown a strong preference for unaccompanied lullabies over accompanied lullabies. The administration terminated a program that granted temporary legal residence to unaccompanied Central American minors. Legal guardianship for unaccompanied minors is regulated by a law of its own. He is widely known for performing and recording regularly as an unaccompanied solo vocal artist. Gee expanded Flores to cover accompanied and unaccompanied children. It starts with a chorus unaccompanied by instruments. In 2014, 40% of unaccompanied refugee minors were female. CHS operates Homestead Temporary Shelter for Unaccompanied Children. The album comprised eight tracks of unaccompanied and improvised music played on prepared guitars. In 1948 Hawkins recorded "Picasso", an early piece for unaccompanied saxophone. Plainsong is monophonic, consisting of a single, unaccompanied melodic line. Among people arriving in Europe there were also large numbers of women and unaccompanied children. The German tour is 36 months for unaccompanied and accompanied. They perform all of these unaccompanied, in single-line unison singing.