A book made up of pages is described. At least some of the pages contain both space for manually-created visual content, and instances of preprinted indexing target symbols. Each of the indexing target symbol instances has at least a portion within one inch of three unbound page edges. When the book is closed, the instances of each particular indexing target symbol are in a substantially collinear stack that is substantially perpendicular to the faces of the pages.

A book made up of pages is described. At least some of the pages contain both space for manually-created visual content, and instances of preprinted indexing target symbols. Each of the indexing target symbol instances has at least a portion within one inch of three unbound page edges. When the book is closed, the instances of each particular indexing target symbol are in a substantially collinear stack that is substantially perpendicular to the faces of the pages.

One embodiment is a book includes a plurality of pages, a plurality of magnets, and a sensor. The plurality of the magnets generate a combined magnetic field strength, which is variable depending on positions of the pages on which the magnets are disposed. The sensor senses the combined magnetic field strength and generates a varying signal based on a varying of the combined magnetic field strength when at least one page is moved. The varying signal indicates a position of at least one page in the book.

One embodiment is a book includes a plurality of pages, a plurality of magnets, and a sensor. The plurality of the magnets generate a combined magnetic field strength, which is variable depending on positions of the pages on which the magnets are disposed. The sensor senses the combined magnetic field strength and generates a varying signal based on a varying of the combined magnetic field strength when at least one page is moved. The varying signal indicates a position of at least one page in the book.

The present utility model refers to a page marker device of the type that can be used between the pages of a book or publication, being that the marker incorporates a writing graphite. The device comprises a strip of graphite partially embedded in the elongate body. The recessed portion of the graphite strip has a length greater than the length of the non-embedded part of the graphite strip, and the elongate thin body has a flat part with a surface suitable for printing.

The present utility model refers to a page marker device of the type that can be used between the pages of a book or publication, being that the marker incorporates a writing graphite. The device comprises a strip of graphite partially embedded in the elongate body. The recessed portion of the graphite strip has a length greater than the length of the non-embedded part of the graphite strip, and the elongate thin body has a flat part with a surface suitable for printing.

A mount that is used to attach electronic devices to a guitar stand is made of a back panel, a clamping mechanism, a support scissor mechanism, and a stand-grasping fastener. The clamping mechanism is a user-actuated clamp that uses a fixed jaw and a movable jaw to hold electronic devices against the back panel. The back panel, which is a rigid plate, is connected to the fixed jaw to further support the clamped electronic device. Additionally, the fixed jaw of the clamping mechanism is mounted onto one end of the rigid support beam. The support scissoring mechanism is an adjustable support assembly that can be locked in a desired orientation. The mount for electronic devices is capable of being attached to various other pieces of musical equipment or stage equipment because a stand-grasping fastener is affixed to a second end of the support scissor mechanism, opposite to the fixed jaw.