US 2002/0152877 A1 · Method and apparatus for user-controlled music generation

Abstract

An initial note series is collected from a real-time source of musical input material such as a keyboard or a sequencer playing back musical data, or extracted from musical data stored in memory. The initial note series may be altered to create variations of the initial note series using various mathematical operations. The resulting altered note series, or other data stored in memory is read out according to one or more patterns. The patterns may have steps containing pools of independently selectable items from which random selections are made. A pseudo-random number generator is employed to perform the random selections during processing, where the random sequences thereby generated have the ability to be repeated at specific musical intervals. The resulting musical effect may additionally incorporate a repeated effect, or a repeated effect can be independently performed from input notes in the musical input material. The repeated notes are generated according to one or more patterns, which may also have steps containing pools of random selections. A duration control means is used to avoid polyphony problems and provide novel effects. Pitch-bending effects may be additionally generated as part of the musical effect, or can be independently performed. A sliding control window may be utilized to achieve accurate and realistic pitch-bending effects. This method and the apparatus that can perform such a method have application to music and other data in general as well.

Claims14

Dependent claims

A general purpose computer-based system for generating musical output data related to input notes to create repeated musical effects, said system comprising:

an input note having a pitch value represented in a predetermined electronic format;
a transposition pattern having a current transposition pattern step including a transposition data item indicating a variable transposition of said input note;
a transposed note having said input pitch value modified according to said transposition data item, said current transposition pattern step being advanced to a next transposition step;
a rhythm pattern comprised of a current rhythm pattern step including a rhythm data item representing a predetermined period of time, said current rhythm pattern step being advanced to a next rhythm pattern step, and
a scheduler for scheduling said transposed note to be output according to said rhythm data item.

2 more elements

A general purpose computer-implemented method of generating musical output data for repeating musical effects on input notes, said method comprising:

inputting an input note having an input pitch;
outputting said input note;
transposing said input pitch to create a transposed note according to a transposition data item, said transposition data item associated with a current transposition pattern step in a transposition pattern, said transposition pattern having a transposition pattern index indicating said current transposition pattern step;
advancing said current transposition pattern step to a next transposition pattern step;
determining an output time according to a rhythm data item, said rhythm data item associated with a current rhythm pattern step in a rhythm pattern, said rhythm pattern having a rhythm pattern index indicating said current rhythm pattern step;
advancing said current rhythm pattern step to a next rhythm pattern step;
scheduling said transposed note to be output at said output time, and
outputting said transposed note.

5 more elements

Dependencies are inferred from the claim text.

Method and apparatus for user-controlled music generation

Life of this patent

Method and apparatus for user-controlled music generation

Life of this patent

Abstract

Claims14