This is a space of vector valued Siegel modular forms with real representation $\mathrm{Det}^{ 12}\otimes\mathrm{Sym}^{ 0 }$. The following table gives the dimensions of various subspaces of $M_{12, 0}(\mathrm{Sp}(4, \mathbb{Z}))$.
| Total | 3 |
| Eisenstein | 1 |
| Klingen | 1 |
| Maass | 1 |
| Interesting | 0 |
The following samples live in this space.
12_E 12_Klingen 12_Maass