In 1923, he began to teach María Luisa Anido (1907–1997) in Buenos Aires. By 1925, the two were performing duets and, according to Purcell, about 1930 recorded some of Llobet's duet arrangements on the Odeon-Parlophone label distributed by Decca. These recordings followed a solo series recorded by Llobet on the Parlophon/Electric series out of Barcelona". The solo recordings, among the first released of the classical guitar, are supposed to have been recorded around 1925, but are from two different sources: Argentina/Odeon recording sessions as well as the earlier Barcelona/Parlophon recording. In response to an inquiry, Purcell stated that "Llobet did not care for the acoustic recording results in 1915 and only recorded electronically... His recordings were recorded in 1925 and later with Maria Anido". It may be noted that electronic recording was developed by Bell Labs under its Western Electrical branch, and was leased to recording companies under the name of "Westrex Electrical Recording System" beginning in 1925. Initially only Victor and Columbia records leased it, with an up-front payment of $50,000 each. Under the general management of Louis Sterling, Columbia acquired a number of European, Asian, and U.S. recording companies in 1925. Sterling soon after arranged for a holding company to combine Columbia and the Carl Lindstrom group, which included Parlphone and Odeon, the companies that seem to be the ones under which Llobet's recordings were released.