Complex sentence: The BBC issued an LP recording taken from one of his last concerts, with sonatas by Beethoven and Schubert, now considered one of the glories of the heritage of Romantic pianism.
Split into simpler sentences: The BBC issued an LP recording taken from one of his last concerts, with sonatas by Beethoven and Schubert. His recordings are now considered one of the glories of the heritage of Romantic pianism.