The ''Chorus laboratory. XXI century'' collection (issue 1) includes creations sent from different cities of Russia and former USSR to the II open nationwide composers' competition ''Russian music of the XXI century for children and teenagers. Chorus laboratory''. The competition was held by the Composers' Union of Saint-Petersburg sponsored by the Seraphim Sarovskiy Foundation and the Cultural Commitee from the Leningrad district government during winter-spring 2009.
This collection consists of three sections: ''Sacred chorus music'', ''Folklore school creations'', ''Chorus creations about nature based on the lyrics of national classic and contemporary poets''. It is republished in a reduced version, for the emphasis to be made on the repertoire of the children choruses.

Contents:
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Dukhovnaja khorovaja muzyka

I. Zabegin. Allilujja
Ave, Marija. Muzyka i slova I. Tsesljukevich. Dlja detskogo khora (ili ansamblja, ili solistov)
Dve pesni iz rozhdestvenskogo spektaklja. Muzyka i slova I. Tsesljukevich
V lodochke nebesnoj
Pesnja pastukhov
A. Mikhel. Angel. Stikhi K. Aksakova
M. Malevich. Tropar sV. blazhennoj Ksenii Peterburgskoj
A. Mozalevskij. Dostojno est. Grecheskogo rospeva
Prazdnik Rozhdestva. Muzyka i slova V. Nedogonovoj
A. Gugel. Kyrie eleison. Kanon dlja dvukh khorovykh golosov i dvukh instrumentov
E. Petrov. MOLITVA. Tekst iz Molitvoslova

Proizvedenija folklornogo napravlenija
V. Beljaev. Tri obrabotki narodnykh pesen rjazanskogo kraja
Soroka
Avsen
Koljada
V. Beljaev. Pojavilis nad vertepom Angely. Obrabotka rozhdestvenskoj pesni (iz svjatochnoj kantaty ''Matushka Marija'')
A. Mozalevskij. Vesnjanka. Slova narodnye
O. Ozerskaja. Penie gorjanok. Obrabotka dlja zhenskogo khora na temy dagestanskikh narodnykh pesen iz sbornika Sh. R. Chalaeva ''50 narodnykh pesen''
S. Smoljaninov. Foma i Erjoma. Shutochnaja pesnja. Slova na