She co-created the ending theme song for Minecraft: The Story of Mojang with C418 and worked together with Yasunori Mitsuda on the official Square Enix Chrono Trigger/Chrono Cross 20th Anniversary Album.
While studying International Relations, Business and Computer Science at the University of California, Berkeley,[7] she was given an old version of Sonar (known as Cakewalk since 2018) which she used to start learning about mixing, arranging and production by recreating old video game soundtracks and composing her own songs.
[8] Shortly after returning to the U.S, Shigihara took a job as the sound director for a company that produced an audio talk show and English learning materials through Apple Japan.
[8] From there she built up her portfolio and has worked on over 30 published titles including Plants vs. Zombies, Deltarune, World of Warcraft, Minecraft and the indie RPG To the Moon.
[4] She participated in Akira Yamaoka's charity album Play for Japan where she contributed an original song called "Jump",[9] alongside other composers like Nobuo Uematsu, Koji Kondo and Yasunori Mitsuda.