| Condition | Sealed |
| Manufacturer | Europe |
| Format | 2xLP, Red and Yellow Swirl Coloured Vinyl, Gatefold Sleeve |
| Date of release | 01.03.2026 |
| Barcode | 4820296110162 |
Musical Letter of Happiness is the third studio album by Ukrainian band Tartak, released in 2004. The album became one of the band's most notable releases in the early 2000s and cemented their status as one of the leading representatives of Ukrainian rap rock and the alternative scene.