![]() ![]() ![]() In addition, the use of augmented reality facilitates the visualization of elements such as finger placement. This technology has been used in education for several reasons, including reduced costs and the improvement of hardware/software, the need for more user-friendly interfaces when interacting with non-expert users, and the need to work with other teaching methodologies using active practices. įurthermore, augmented reality (AR) has been used to mitigate the limitations of the different didactic materials used to learn guitar. This combination of audio overlay and 3D visual information is extremely well suited to guitar teaching. In this approach, students are shown an image of how the fingers should be positioned to play a chord, together with audio of how it should sound when played correctly, and a camera is then used to detect the student’s finger positions via corresponding finger markers. Using a Bayesian classifier, other authors have added the possibility of correctly identifying whether the chord the student is playing is the one requested. In this instance, the learner can clearly visualize the hand and finger positions, making it easier to understand how to correctly place the fingers on the strings and frets of the guitar. Another, more intuitive proposal that has been used swaps projected light for a virtual hand. This methodology helps a student to quickly identify the correct position of fingers on the strings and frets in order to correctly play the desired chord. It is possible to indicate correct finger positioning using a mobile projector that projects different colored lights mounted on the headstock of the guitar. Īs it has been demonstrated that technology can help during basic training, certain ICT-based methods have been tested on the guitar, some of which have been aimed at facilitating learning, while others have aimed to make learning more attractive and effective. This series of basic requirements reminds us that musical instruction commonly includes materials that can act as obstacles to learning. It is difficult to perform these placements correctly and accurately reproduce the sound corresponding to each note. As part of the learning process students must memorize complex and unfamiliar finger placements in order to play chords. Such issues make it difficult for students to develop their own musical style. However, students attempting to learn this instrument and attune their hearing may encounter issues that make reading music and tuning the instrument particularly challenging, e.g., structural inconsistencies (differences in the sizes of guitars or spacing between strings) or the notational system used for this instrument versus other instruments (as notes are written graphically for interpretation). The guitar is arguably one of the most popular musical instruments, and is found in a vast array of musical genres from jazz to bossa nova. A system usability scale (SUS) questionnaire was used to measure the usability of the application, obtaining a score of 82.5, which was higher than the average of 68 that indicates an application to be good from a user experience point of view, and satisfied the purpose for which the application was created. However, participant feedback suggested that there are advantages to the self-taught approach using AR that are worth considering. Results found no differences in learning times between the two groups based on the variables of method and gender. Group 1 consisted of 32 participants who used the AR app to teach themselves guitar, while Group 2, with a further 32 participants, received formal instruction from a music teacher. Participants were divided into two groups of the same size. This paper proposes an application based on augmented reality (AR) that is designed to teach beginner students basic musical chords on the guitar, and provides details of the experimental study performed to determine whether the AR methodology produced faster results than traditional one-on-one training with a music teacher. Despite being one of the most commonly self-taught instruments, and despite the ready availability of significant amounts of didactic material, the guitar is a challenging instrument to learn. ![]()
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