In the 2008/2009 season, Rachael Flatt competed her FS to a collection of music by Debussy (La Mer and and Petite Suite) She competed the SGP, US Nationals and Four Continents to this FS.
https://www.youtube.com/watch?v=hXUVcqpEkyU
After 4CC, it was recommended by USFS officials that she find a better piece of music for 2009 World Championships (her first World Championships as she had been too young in 2008, held in LA). She returned to work with Lori Nichol on the piece of music she used the year before “Romantic Rhapsody” by Mathieu, which she had not trained in over a year since World Jr Championships in 2008. Flatt had trained two versions of Romantic Rhapsody in 2007/2008, as she competed internationally as a junior lady, and domestically as a senior lady. So, Flatt had not really trained a full senior length version of the program since US Nationals in January of 2008 (14 months).
https://www.youtube.com/watch?v=9S2hFTNxBYQ&t=53s
In the 2010/2011 season, Flatt’s SP was a mix of “Summertime” and Happy Feet Blues”, but following the SGP fall season, USFS recommended she find different SP music.
Three weeks before US Nationals, Flatt worked with Lori Nichol again, and Nichol was the one who recommended “East of Eden”, who created a brand new SP for her.
Many people criticized the choice as the music was too closely identified with Michelle Kwan, again it was Nichol’s decision, but the results of the new choreography under the IJS brought out a new performance side of Flatt. Flatt probably was one of the few skaters who had taken on skating to "East of Eden" after the MK era, but it has been used frequently since 2010/2011 with terrific success and memorable performances (Tatsuki Machida, Ellie Kam & Danny O'Shea, Mariah Bell, among others).
https://www.youtube.com/watch?v=nfjH5ku5tws
and
https://www.youtube.com/watch?v=68O_RfCcn7Q&t=229s
I am curious is to how often it is at the recommendation of a federation that the skater changes music selections during a season, or the coach and skater make the decision. Is it an issue of not getting the scores that they were hoping to achieve, poor audience engagement, the difficulty of the choreography with a specific piece of music?? And when a skater or team goes back to a program that they have competed in the past, wondering how successful the performance is, given the length of time it has been since training a program, or if it is a brand new program??