This week's moment of Bach is a blissful ascending sequence in the fast final fugue movement of this keyboard toccata, which reminds us of the audacious repeating steps up and up (and down and down) of Monteverdi's "Si ch'io vorei morire." 

Does this fugue opening sound familiar? Its subject is ALMOST another much more famous one. The fugue's ending is no less spectacular.

Fugue from Toccata in E minor BWV 917 as performed by Bart Jacobs for the Netherlands Bach Society

Si ch'io vorrei morire (Claudio Monteverdi): translation