Sure, here are some recommended songs from each producer:

-   Kanaria: "恋はムーブメント" (Love is a Movement), "眠れない夜には" (For Sleepless Nights)
    
-   Mitchie M: "Rolling Girl" (Vocaloid cover), "Matryoshka" (Vocaloid cover)
    
-   syudou: "月の光" (Moonlight), "風に吹かれて" (Blown by the Wind)
    
-   Kikuo: "初音ミクの消失" (Hatsune Miku's Disappearance), "歌に形はないけれど" (Though a Song Has No Form)
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