The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1999
Filed:
Jun. 23, 1997
Todor C Fay, Bellevue, WA (US);
David G Yackley, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A system and a method for the notes of one track to move in a harmonically separate manner from the notes of another track when the notes of each track are played against a chord progression. Each track is associated with a chord function. The notes of the tracks are then played against a progression of polychords, where each polychord consists of one or more chords. In addition, each chord of a polychord is associated with one or more chord functions. During operation, each note of a track is mapped against a chord of the currently playing polychord. The chord for each track is selected by identifying the chord of the polychord that is associated with the same chord function as the track. Furthermore, individual tracks, groups of notes, or single notes can be assigned to one of several playback modes. Each note includes a field that identifies a playback mode. In addition, each track is associated with a playback mode. Prior to generating a performance note, the playback mode for the note is determined, and the note is transposed or mapped against the currently playing chord in accordance with the playback mode.