Spectrum Analyser LED matrix help

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Yes.
First Anode driver (single transistor) drives ALL the No 1 LEDs
Second Anode driver (single transistor) drives ALL the No 2 LEDs
etc.
First Bar cathodes ALL connect to Pin 1C of U2.
Second Bar cathodes ALL connect to Pin 2C of U2.
etc.
So U2 selects which bar to light and Anode driver selects which level to light.
So, instead of 100 individual transistors, a combination of 10 transistors x 10 cathode drives (ic) = 100 possible LEDs lit.
 
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