Programmer Peter Neubäcker has developed Direct Note Access, software that can allow computers to analyze digitized chords and separate them into individual notes. While it was already possible to manipulate pitch, tempo and other aspects of music, this is the the first time that a single chord can be dissected. The former German guitar maker’s software can help musicians and engineers correct notes that are out of tune as well as unreleased classic music that was recorded on out-of-tune instruments.