Zhimsound has released an unofficial Mac patch editor for the Roland TB-3 Bassline Synthesizer.
The previously released a Windows Roland TB-3 editor.
The release includes standalone and VST versions of the editor.
A Synth page is available for editing synth parameters and an Effects page lets you edit the effects parameters.
The Roland TB-3 patch editor is donationware. If you use it, you can donate to help support further development. See the Zhimsound site for details.