There is an interesting publication in the Berben Andres Segovia Archive series entitled Alexandre Tansman, Posthumous Works, edited by Frederic Zigante. These are works from the Segovia archive (never actually played or even edited by Segovia) that Zigante has edited for publication (mostly by fingering the pieces, but in one case transposing the key and in others altering the metrical notation).
The volume includes facsimiles of Tansman's manuscripts, a catalogue of Tansman's guitar works and their publication history and some biographical information about Tansman and his collaboration with Segovia. It seems that Tansman's musical style in composing for the guitar was influenced by Segovia's requirements and that his non-guitar works are generally somewhat different in style - Segovia steered him towards a neo-classical style (as is clearly indicated by the Suite in Modo Polonico).
A snippet of information about Tansman I had been unaware of was that he was taken to a concert by the Belgian violinist Eugène Ysaÿe when he was six years old where he heard the Bach Chaconne for the first time and was so moved that he there and then resolved to become a composer.
Eric from GuitarLoot
Renaissance and Baroque freak; classical guitars by Lester Backshall (2008), Ramirez (Guitarra del Tiempo 2017),
Yamaha (SLG 130NW silent classical guitar 2014).