Actually it's harder to find out the songs that are never performed live.
That I can think of :
1. 愛妻家の朝食 (but actually it was performed in An-pon-tan live.)
2. 宗教
3. 黄昏泣き
4. BB.Queen
5. ハツコイ娼女
6. several songs of 唄ひ手冥利～其ノ壱～
and...
7. Ringo Catalogue --> I want it to be performed live.
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