The glorious spectrum of orchestral colour is refracted through a combination of four of the most brilliantly original voices in twentieth century music. Two evocatively-titled unconventional concertos are set against Messiaen鈥檚 glittering primary colours and the effortless symmetry and rich, burnished grandeur of Sibelius鈥� ingenious symphony. Murail鈥檚 2012 work was described by the New York Times as 鈥榓n elemental, shimmering mass of layered sounds, nuanced colours and stacked up harmonies鈥� after its American premiere, and Jan谩膷ek鈥檚 mini-concerto makes the perfect counterweight, sparse, raw, but lyrical and earthily impassioned.