Ludovic Morlot first guest-conducted the Seattle Symphony in October 2009. He returned in April 2010, as a substitute conductor in the wake of the 2010 Eyjafjallajökull eruptions. Based on these appearance, in June 2010, the orchestra announced the appointment of Morlot as its 15th music director, effective with the 2011–2012 season, with an initial contract of six years. During Morlot's tenure, the orchestra initiated its own recording label, 'Seattle Symphony Media'. In July 2015, the orchestra announced the extension of Morlot's contract through the 2018–2019 season. Morlot has taken particular interest in fostering music from Seattle-based composers, including composers within the orchestra itself. His work with the orchestra has included the commissioning and premiere of John Luther Adams' "Become Ocean", which went on to win the 2014 Pulitzer Prize for Music and the 2015 Grammy Award for Best Classical Contemporary Composition. The commercial recording of "Become Ocean", for Cantaloupe Music, led to a donation by Taylor Swift to the Seattle Symphony of US$50,000. Morlot and the orchestra have received additional Grammy Awards for their recordings of music of Henri Dutilleux. In April 2017, the orchestra announced that Morlot is to conclude his tenure as music director at the end of the 2018–2019 season.