Cecil (after Cecil Taylor) is a service that sonifies financial data so as to reveal inequities.

The Art of Sonification

High Frequency ↔ Low Frequency

• The higher the price transacted, the higher the pitch of the sound.

• The lower the price transacted, the lower the pitch of the sound.

High Amplitude ↔ Low Amplitude

• The greater the impact of the transaction, the louder the sound (forte).

• The lower the impact of the transaction, the quieter the sound (piano).

High Spectral Entropy ↔ Low Spectral Entropy

• The greater the value of the transaction, the higher the spectral entropy of the sound.

• The lesser the value of the transaction, the lower the spectral entropy of the sound.