Alexander Tansman [1897-1986] was a Polish composer in a typical 20th Century mold. Growing up in his native Poland, when it was still apart of old Czarist Russia, in a well-to-do Jewish household in Lodz, he studied law but chose to emigrate to Paris to pursue a musical career. For a while, he performed as a piano virtuoso, but eventually his talent as a composer became the focus. Despite producing music for many different kinds of instrumental combinations, today it is his works for guitar that he is remembered. These comprise just a hand-ful of pieces, but they seem as natural (and inevitable) to the instrument as any by Spanish, Italian or South American composers. It was through the influence of Andres Segovia, who throughout his lifetime encouraged contemporary composers to explore writing for the guitar, that Tansman came to write for it. There were others, including the Mexican composer Manuel Ponce, and the Brazilian Villa-Lobos.
Tansman and Segovia in middle age
Tansman and Segovia
Here is a tidy gathering of YouTube links.