One wonders how many songs each character will sing in the Kami Jigen Idol Neptune PP game.
In a roundabout way, earlier I described Noire/Black Heart voice actress Imai Asami singing range and gave some examples.
Similarly, the Idol Neptune PP game should take advantage of Neptune/Purple Heart voice actress Tanaka Rie's singing versatility. She seemingly sings nearly anything thrown at her, including non-Japanese language songs.
Examples of Tanaka Rie's singing versatility:
Rie Tanaka - tadaima
TANAKA RIE SINGS A JAZZ WALTZ TUNE AS MARIA FROM HAYATE THE COMBAT BUTLER:
Hayate no gotoku S2 chracter song: Maria: Koucha no Waltz
BRAZILIAN BOSSA NOVA:
Rie Tanaka - Midori no Mori (緑の森, Midori no Mori?)
Rie Tanaka - Rainbow Highway (Full Version) / Memories Off 6 ~T wave~
Lacus Clyne As A Rock Singer? - TANPOPO (Sung By Lacus Voice Actress Rie Tanaka)
Tanaka Rie - Anarchy in the UK [Sex Pistols song cover sung in English]
1970S SOFT ROCK:
Rie Tanaka - Have You Never Been Mellow [Olivia Newton-John song cover sung in English]
Rie Tanaka Sings as Yomi from Azumanga Daioh - Sorezore no One way
WORLD WAR II GERMAN POPULAR SONG LILI MARLEEN [popularized by German cabaret singer Lale Andersen and also sung in English by Marlene Dietrich; sung in Japanese]:
Rie Tanaka - Lili Marleen (Strike Witches) + Sunset☆realise (Futari wa Pretty Cure Max Heart)
Tamao Kakyouin (Rie Tanaka) - True To My Heart / Love☆Tra[ining] ~Sweet~
TANAKA RIE AS CIEL FROM ROCKMAN ZERO/MEGA MAN ZERO SINGING ABOUT THE BIRD OF HAPPINESS:
Megaman Zero/Rockman Zero - L'oiseau du bonheur [Subbed English] [sung in French (some native French speakers say that they can barely understand a word she sings)]
SPEAKING OF BIRDS, TANAKA RIE SINGING AS HIBIRD IN KATEKYO HITMAN REBORN!:
Hibird's Singing 【Episodes '1'-159】