The New York Philharmonic's Project 19 is a multi-season project dedicated to commissioning 19 women composers to write new works for the orchestra. Tania León's commission, Stride, will be premiered on February 13 and subsequently performed on February 15 and 18. In the film below, León talks about her creative process and about the importance of having faith in doing something when those around you might not believe that you can do it.