A seven-string bass (B0–E1–A1–D2–G2–C3–F3) was built by luthier Michael Tobias in 1987 for bassist Garry Goodman.
Naručeni model sa sedam žica (B0-E1-A1-D2-G2-C3-F3) 1987. godine izgradio je graditelj Michael Tobias za basistu Garry Goodmana.