of extra work going into the sound design, the music team doubled in size from the standard five-person group, and became the largest sound team at the time to have worked on a Nintendo game. The positive reception of the orchestral score within the company led to the creation of The Legend of Zelda 25th Anniversary Symphony Concert, a celebratory concert featuring orchestrated versions of classic Zelda themes. Music was also woven into the story and gameplay through the use of the harp Link receives, using a recurring theme within the series of music being a central part of the experience. In contrast to previous games, the instrument could be played at any time rather than at specific times and places. Release A new Zelda game was first hinted at in April 2008, when Miyamoto stated that the Zelda development team were reforming to create new games. Miyamoto later confirmed at the 2008 Electronic Entertainment Expo (E3) that a new Zelda was in development for the Wii. The game was unveiled at E3 the following year, although its title remained unknown. Due to its in-development state, Miyamoto could not show off gameplay as he had wished. Instead, he showed promotional art featuring Link and Fi. He also announced the game's use of Wii MotionPlus, along with its planned 2010 release window. In a later interview, Aonuma's comments on the game's playability brought this release window into doubt. He also noted that his wish to focus on the new game meant that the release date of Spirit Tracks was shifted to the end of 2009 rather than its initial projected release in early 2010. The game's title was announced at the event, along with its revised release period in 2011 and a playable demonstration. According to Miyamoto, the game was delayed from its planned 2010 release window as the staff felt that they would be releasing an unfinished product if they put the convenience of the company ahead of creating a quality experience. They used the extra year to both finish the core elements and polish up the game as a whole. Multiple promotional elements were created: a five-part online comic was written and illustrated by Jerry Holkins and Mike Krahulik under their Penny Arcade Presents series, and television commercials featuring actor and comedian Robin Williams and his daughter Zelda were made, playing on the actor's stated love for the series.