Abstract: An ergonomic handle for a multipurpose brush includes a gripping surface having a series of protrusions along a rear surface of the handle, a thumb recess formed along a front side of the handle and first and second opposed lateral recesses extending along sides of the proximal segment.

Abstract: A multipurpose brush includes a brush head and a handle coupled to and extending from the brush head. The brush head includes a central core member. The central core member includes a top surface, a bottom surface, a rear surface and a front surface, wherein the central core member also includes a central longitudinal axis. The brush head further includes bristles extending from the top surface, bottom surface and front surface of the central core member. The bristles extending from the top surface define an upper brushing surface at distal ends of the bristles which is approximately 5° to 20° relative to the central longitudinal axis and the bristles extending from the bottom surface define a lower brushing surface at distal ends of the bristles which is approximately 5° to 20° relative to the central longitudinal axis. A set of brushes is also provided in accordance with the present invention.

Abstract: A multipurpose brush includes a brush head and a handle coupled to and extending from the brush head. The brush head includes a central core member. The central core member includes a top surface, a bottom surface, a rear surface and a front surface, wherein the central core member also includes a central longitudinal axis. The brush head further includes bristles extending from the top surface, bottom surface and front surface of the central core member. The bristles extending from the top surface define an upper brushing surface at distal ends of the bristles which is approximately 5° to 20° relative to the central longitudinal axis and the bristles extending from the bottom surface define a lower brushing surface at distal ends of the bristles which is approximately 5° to 20° relative to the central longitudinal axis. A set of brushes is also provided in accordance with the present invention.

Abstract: A rotary brush including an elongated handle and brush head and a rotary swivel joint between the handle and brush head allowing the brush to rotate to reach hard to access places when used for cleaning.

Abstract: A recording method and system that provides optional and controllable song lyric acoustical promptings and music for Karaoke participants which is also capable of providing phonetic instruction for formative bilingual skill development. The acoustical prompts are in the form of short spoken phrases, acoustically provided just prior to the time at which the actual vocal should be sung. The method of acoustical prompting employs a listen--sing-along procedure effected via the interaction of the spoken instructor-promptings and the Karaoke participant. The acoustical system includes preparing a multi-track recording in proper time sequence to provide a precedent acoustical prompt. For example, the recording could have stereo music on two tracks, an original vocal on a third track in synchronism with the music, and on a fourth track rapidly spoken prompt messages preceding respective portions (vocal lines) of the original vocal.

Abstract: A recording method and system that provides optional and controllable song lyric acoustical promptings and music for Karaoke participants which is also capable of providing phonetic instruction for formative bilingual skill development. The acoustical prompts are in the form of short spoken phrases, acoustically provided just prior to the time at which the actual vocal should be sung. The method of acoustical prompting employs a listen--sing-along procedure effected via the interaction of the spoken instructor-promptings and the Karaoke participant. The acoustical system includes preparing a multi-track recording in proper time sequence to provide a precedent acoustical prompt. For example, the recording could have stereo music on two tracks, an original vocal on a third track in synchronism with the music, and on a fourth track rapidly spoken prompt messages preceding respective portions (vocal lines) of the original vocal.