Kálmán Kalocsay (1891-1976) was a Hungarian Esperantist poet, editor and translator, who had a major influence on Esperanto before WWII, especially in Hungary. He was also known by his name in Esperanto version Kolomano Kaloĉajo, as well as various pseudonyms: C.E.R. Bumy, Kopar, Alex Kay, K. Stelov, Malice Pik and Peter Peneter.
This collection of songs, Streĉita Kordo is considered by many Esperantists as one of the finest collections of original Esperanto poetry.
The book was published by Kalocsay’s Esperanto publishing house Literatura mondo, based in Budapest, which was since 1922 publishing an Esperanto magazine with the same title. During WWII the magazine and the publishing house were closed, because the Nazis forbade publications in Esperanto. The first magazine after the war was published in 1947.
A reprint of the book was made in 1978. We could only trace a few examples of the first edition from 1931 in libraries worldwide.