In 2006, she began uploading her music to Niconico and other websites, gaining the attention of the J-pop band Supercell, who featured Yanagi as the guest vocalist from 2009 to 2011.
Yanagi made her solo debut in February 2012 with the release of the single "Vidro Moyō", which is used as the ending theme to the anime Waiting in the Summer.
Her music has been featured in anime series such as My Youth Romantic Comedy Is Wrong, As I Expected, Jormungand, Seraph of the End, and Nagi-Asu: A Lull in the Sea.
[4][5] Yanagi began posting cover versions of songs online in 2006, and started producing original dōjin music under the name CorLeonis.
Between 2007 and 2011, Binaria released two mini-albums (Alhaja (2007) and Forma (2007)), one best of album (Sonido (2010)), and four singles ("Epoca" (2008), "Alba" (2009), "Delightful Doomsday" (2010), and "Nachtflug" (2011)).
[6] In January 2007, Yanagi formed the musical unit Inochi Kokonotsu with composer KTG (an acronym of Ken The Garage), and the group put out a single album, Tortoiseshell (トーティシェル), on April 29, 2007 before disbanding in June 2007.
[15] Yanagi collaborated with Jun Maeda of Key to produce the original concept album Owari no Hoshi no Love Song released on April 25, 2012.
[16] Yanagi made her solo debut signed to Geneon with the single "Vidro Moyō" (ビードロ模様) released on February 29, 2012.
[17] Yanagi's second single "Ambivalentidea" was released on June 6, 2012; the title track is used as the ending theme to the 2012 anime series Jormungand.
[19] Yanagi released her fourth single "Zoetrope" on January 30, 2013; the title track is used as the opening theme to the 2013 anime series Amnesia.
[20] Yanagi released her fifth single "Yukitoki" (ユキトキ) on April 17, 2013; the song is used as the opening theme to the 2013 anime series My Youth Romantic Comedy Is Wrong, As I Expected.
[22] Yanagi released her sixth single "Aqua Terrarium" (アクアテラリウム) on November 20, 2013; the song is used as the first ending theme to the 2013 anime series Nagi-Asu: A Lull in the Sea.
[24] Yanagi's eighth single "Tokohana" (トコハナ) was released on June 4, 2014; the song is used as the ending theme to the 2014 anime series Black Bullet.
[25] The third song of the single is used in the Z-kai Group promotion video Cross Road (クロスロード) in collaboration with Makoto Shinkai.
[30] Yanagi's 11th single "Harumodoki" (春擬き) was released on June 3, 2015; the song is used as the opening theme to the second season of My Youth Romantic Comedy Is Wrong, As I Expected.
"Time Is on the Other Side of the Window") was released on August 2, 2017; the song is used as the ending theme for the 2017 anime series Chronos Ruler.
[44] Yanagi's 16th single "Over and Over" was released on November 1, 2017; the song was used as the opening theme for the 2017 anime series Just Because!,[45] where she also served as the music producer.
"A Far-Away Future") was released on February 21, 2018; the song is used as the first ending theme to the 2018 anime series Hakyū Hōshin Engi.
"Magical Twilight of Your Early Dawn") was released on October 31, 2018; the song is used as the ending theme to 2018 anime series Iroduku: The World in Colors.
[5] In an interview with Natalie, she described how because she wanted the song to have a "more literary feel", she would frequently consult a dictionary while writing the lyrics.