This role: For this role you would be being the voice of IAi. Everyone is welcome to audition. For IA's voice a medium pitched voice would be preferred. alto-mezzo- vocal range is also recommended since most of IA's songs are medium-high-low.

For the audition songs you may sing in either Japanese or English. Although in the future we will be singing in both languages.

About IA: (from the vocaloid wiki)  

IA (イア) is a Japanese VOCALOID developed and distributed by 1st PLACE Co., Ltd., and was released in January 2012 for the VOCALOID3 engine. Her voice is provided by the Japanese female singer-songwriter, Lia, known for "Tori no Uta".

She received an additional VOCALOID3 voicebank known as IA ROCKS in June 2014. In March 2017, she received a CeVIO talk voicebank.

In July 2016, an English CeVIO song voicebank was confirmed to be in the works,[1][2][3] and was later released on June 2018.

Her design was illustrated by Aka Akasaka (D. Z.), while the design direction was by Maxilla Inc.[6] It was decided that they would go for soft colours instead of vivid ones. At the time, there was skepticism towards avoiding vivid colours as there was a fear of her not selling because of the softer tones. Lia herself wanted her to be cute and pretty and was satisfied the first time she was shown the artwork.[7]

Despite the myth of IA's age being 15, she has had no age assigned to her. This myth seems to originate from a section underneath the paragraph on IA about her provider Lia, wherein one of the first things mentioned was that Lia debuted in America at 15 years old. 

IA developed a good reputation as a reliable voicebank library among many producers, this owed to much of her success. IA was well received and had many hits in the Nico Nico Douga weekly rankings after her release.

Within 6 months of her release, several songs hit 1,000,000+ views on Nico Nico Douga, whereas none of the other VOCALOID3 vocals achieved success of this caliber until December 2014 when Yuzuki Yukari managed to achieve her first 1,000,000 song. This put her on par with some of the more successful VOCALOID2 era voicebanks. Lia herself was reported as surprised when she became popular as she did not expect her to do so well. She also commented on how there were many fans of IA who did not even know who she (Lia) was.[7]

On 1st July 2015, it was announced that her playback of related videos had reached 100 million, views were coming in from both Japan and abroad. She had also experienced several live performances in Taiwan, France and North America. This lead to the release of her official app.[9][10]