The siinamota Tie-In is a producer tie-in celebrating the deceased VOCALOID producer siinamota that occurred in February 2023. The campaign involved three of his songs being added to Project SEKAI.
Songs[]
| № | Cover | Song | Original Singer(s) | Date Added (JP) | Date Added (EN) |
|---|---|---|---|---|---|
| 01 | 
|
Strobe Last | Hatsune Miku | 02/28/2023 | 03/06/2024 |
| 02 | 
|
Palette ni wa Kimi ga Ippai | Hatsune Miku | 03/01/2023 | 03/07/2024 |
| 03 | 
|
Q | Kagamine Rin | 03/02/2023 | 03/08/2024 |
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