José Rodríguez Alvira
An episode based on motives a and a2 follows the exposition. The bass plays fragments of the subject starting on measure 19:
After the episode the subject is then presented by the alto while the bass plays the first notes in stretto:
The bass plays the subject after a long episode (measures 25 to 34). The first section of the fugue ends with a cadence to D minor. Note the constant use of motive a2 and fragments of the subject: