Tone Generator Help

I am trying to create bass lines using the tone generator in audacity, for rap/trap instrumentals like in this song: . I need help determining what frequency is what musical note. For example, I know that 440hz is A, which translates to 55hz, (440/2=220/2=110/2=55), which is the appropriate frequency for said instrumentals. I need to know what the frequencies are for the rest of the tones on the chromatic scale; C, D, E, F, G, and B. any help would be appreciated :smiley:

See here:

There is a plug-in available here that you may find useful: