A method for assisting a user in tuning a drum comprising the steps of: considering a strike on the drum whereby the strike is detected in a sensor signal in at least one of following domains: a time domain, a frequency domain, a complex domain; recording a first sound fragment of the strike; converting the first sound fragment from the time domain to the frequency domain; analyzing the first sound fragment in order to detect a fundamental tone with fundamental tone frequency of the drum; calculating an overtone frequency or overtone frequency range of a first overtone of the drum by means of a predetermined algorithm related to the fundamental tone frequency; setting a filter with a pass frequency band covering the calculated overtone frequency or overtone frequency range; and indicating, via a user interface, at each further strike when the frequency of the first overtone detected in the pass frequency band is higher or lower than a target overtone frequency.

A method for assisting a user in tuning a drum comprising the steps of: considering a strike on the drum whereby the strike is detected in a sensor signal in at least one of following domains: a time domain, a frequency domain, a complex domain; recording a first sound fragment of the strike; converting the first sound fragment from the time domain to the frequency domain; analyzing the first sound fragment in order to detect a fundamental tone with fundamental tone frequency of the drum; calculating an overtone frequency or overtone frequency range of a first overtone of the drum by means of a predetermined algorithm related to the fundamental tone frequency; setting a filter with a pass frequency band covering the calculated overtone frequency or overtone frequency range; and indicating, via a user interface, at each further strike when the frequency of the first overtone detected in the pass frequency band is higher or lower than a target overtone frequency.

A tuning device for a musical instrument includes a body and a neck extending out from the instrument's body. The neck has a free end including a headstock. The headstock includes an anterior instrument face, a posterior instrument face essentially opposite to the anterior instrument face, and at least one tuning key disposed on the posterior instrument face. The tuning device includes a tuning display and is engagable with one or more of the at least one tuning key, having a shape of a right-handed triangle fused to an oblong. The tuning display is disposed on the hypotenuse of the triangle. The display is positioned on the tuning device such as to essentially face the instrument's body when the tuning device is both engaged with the one or more tuning key, and entirely disposed above the posterior surface.

A tuning device for a musical instrument includes a body and a neck extending out from the instrument's body. The neck has a free end including a headstock. The headstock includes an anterior instrument face, a posterior instrument face essentially opposite to the anterior instrument face, and at least one tuning key disposed on the posterior instrument face. The tuning device includes a tuning display and is engagable with one or more of the at least one tuning key, having a shape of a right-handed triangle fused to an oblong. The tuning display is disposed on the hypotenuse of the triangle. The display is positioned on the tuning device such as to essentially face the instrument's body when the tuning device is both engaged with the one or more tuning key, and entirely disposed above the posterior surface.

Tuning information is calculated based on input sounds. A tuning estimating apparatus includes an input sound acquirer for acquiring input sounds, a pitch calculator for calculating pitches of the input sounds acquired by the input sound acquirer, and a tuning value calculator for calculating a tuning value representing an offset between a tuning reference position serving as a reference for tuning and a reference position on a first distribution of the pitches calculated by the pitch calculator, based on a peak of the first distribution. The tuning value calculator calculates the tuning value based on the positional relationship of a periodic peak group of the first distribution.

Tuning information is calculated based on input sounds. A tuning estimating apparatus includes an input sound acquirer for acquiring input sounds, a pitch calculator for calculating pitches of the input sounds acquired by the input sound acquirer, and a tuning value calculator for calculating a tuning value representing an offset between a tuning reference position serving as a reference for tuning and a reference position on a first distribution of the pitches calculated by the pitch calculator, based on a peak of the first distribution. The tuning value calculator calculates the tuning value based on the positional relationship of a periodic peak group of the first distribution.

A method for assisting a user in tuning a drum comprising the steps of: considering a strike on the drum whereby the strike is detected in a sensor signal in at least one of following domains: a time domain, a frequency domain, a complex domain; recording a first sound fragment of the strike; converting the first sound fragment from the time domain to the frequency domain; analyzing the first sound fragment in order to detect a fundamental tone with fundamental tone frequency of the drum; calculating an overtone frequency or overtone frequency range of a first overtone of the drum by means of a predetermined algorithm related to the fundamental tone frequency; setting a filter with a pass frequency band covering the calculated overtone frequency or overtone frequency range; and indicating, via a user interface, at each further strike when the frequency of the first overtone detected in the pass frequency band is higher or lower than a target overtone frequency.

A method for assisting a user in tuning a drum comprising the steps of: considering a strike on the drum whereby the strike is detected in a sensor signal in at least one of following domains: a time domain, a frequency domain, a complex domain; recording a first sound fragment of the strike; converting the first sound fragment from the time domain to the frequency domain; analyzing the first sound fragment in order to detect a fundamental tone with fundamental tone frequency of the drum; calculating an overtone frequency or overtone frequency range of a first overtone of the drum by means of a predetermined algorithm related to the fundamental tone frequency; setting a filter with a pass frequency band covering the calculated overtone frequency or overtone frequency range; and indicating, via a user interface, at each further strike when the frequency of the first overtone detected in the pass frequency band is higher or lower than a target overtone frequency.

A drum tuning apparatus includes: a shaft having a first end separated from a second end by a distance; a percussion mallet formed on the first end of the shaft; and an elongated member that extends from the shaft substantially transverse with respect to an axis of the shaft. A distal end of the elongated member has an opening defining a recess that is shaped and sized to receive a lug of a drum tension rod therein. An outer surface of the elongated member proximate to its distal end may be formed as a cylindrical surface. A second percussion mallet may be formed on the second end of the shaft such that the drum tuning apparatus can tune different types of percussion instruments without having to use different tools. The first percussion mallet may be a snare drum tip, and the second percussion mallet may be a bass drum tip.

The invention is a device that attaches to musical equipment/instruments or fitness equipment, that can automatically track and display the duration of time a user has used the equipment using novel multi-factor verification from multiple sensors. The device includes a piezo vibration sensor, an accelerometer/gyroscope, a light sensor and IR sensor, a microprocessor, a battery for power, non-volatile memory, a mounting system, an inbuilt display, an antenna with means of wireless communication, and at least one button. The device functions via a multi-level verification process to ensure correct usage has been detected. The sensors to detect use are a piezo vibration sensor, accelerometer/gyroscope and a light sensor. In addition, the device also allows a user to select and create configurations to detect use of a variety of different objects. This could involve changing different sensor priorities, changing sensors sensitivity or disabling sensors.