As a composer of orchestral music, Alexander Scriabin is best known for his last two idiosyncratic symphonies, the Poem of Ecstasy and Prometheus: The Poem of Fire, which are essentially symphonic poems, not symphonies in the conventional sense. The Symphony No. 1 (1900) and the Symphony No. 2 (1901), however, are more recognizable as symphonies in their multiple-movement forms, and their durations are comparable to the expansive symphonies of Scriabin's contemporary, Gustav Mahler. They also share the post-Romantic tendency toward Wagnerian harmonies, rhapsodic melodies, and lush orchestration, which, in Scriabin's case, were developed to express heightened emotional states and mystical transcendence. This 2016 double SACD by Valery Gergiev and the London Symphony Orchestra presents each of the symphonies on its own disc, and the high-quality multichannel sound is ideal for bringing across the subtle nuances of tone color and the shifting of dynamics that are characteristic of his style. Listeners who are daunted by the sheer density and intensity of Scriabin's later works might find these symphonies more approachable, and the live interpretations by Gergiev and the LSO are hard to improve on. Highly recommended.