Solza is a result of collaboration between SToP (Slovenski tolkalni projekt) and Jan Barič as designer and woodworker. Solza is a music instrument inspired by African udu drum. The udu is an implosive aerophone and an idiophone of the Igbo of Nigeria. In the Igbo language, ùdù means ‘vessel’. Solza is made from Oak wood and is hand turned on wood lathe. There are many ways that the pitches can be changed, depending on how the hand above the small upper hole is positioned. The instrument is played by hand. It is also possible to produce sound in another four different ways.