I was able to get a copy of Turina's own manuscript for the Homenaje a Tárrega, which is on file with the Sociedad de Autores Españoles in Madrid. Some important differences in what Turina wrote, versus what Schott published. In one case, a full measure has been deleted from the published score.
NOTE: The extreme right margin of the copy I received is cut off, so those very last notes on each line are lost. It does not make much difference here.
See photo captions.