Bio-musical instruments can be defined as musical instruments made from plant wastes in the surrounding environment. One of the plant waste that is easily found in the community is coconut shell. Coconut shells are often overlooked for their use as a creative medium, especially in the field of music. Musical instruments are the main media for creativity in the art of music. The rise of musical instruments or musical instruments with high prices has become one of the inhibiting factors for young people to be creative in the field of music. Seeing this phenomenon, it is deemed necessary to develop people's creativity in making their own musical instruments at economical prices but still able to compete with manufactured musical instruments. In making this bio-instrument, the method used consists of problem identification, preparation, application, and evaluation. Through this method, the results obtained in the use of coconut shell waste into creative media are the Kalimba instrument played by plucking the iron keys as the source of the tone, while the coconut shell is used as the main medium for the sound resonance of the Kalimba instrument. Kalimba is classified into a type of lamellophone instrument, which is a musical instrument that has a tongue or a thin plate. In addition to the easy-to-use manufacturing process, the tools and materials in making these instruments are also easy to find and can even take advantage of used materials. The results of making bio-musical instruments are expected to become a reference and reference for academics and non-academics, regarding how to make musical bio-instruments using coconut shell waste.

Aneuk Yatim is a song created in 1999 by Rafly, has a message and meaning of peace in responding to issues of political upheaval in Aceh, and represents the condition of children in Aceh during the conflict. Through lyrics and melody, Rafly is able to create an atmosphere of sadness that can be felt by the community regarding the conditions and situations during the conflict. The vocals in the song Aneuk Yatim, written by Rafly, have a melodic structure and form consisting of musical ornaments, melodic travel arrangements and scales. This study describes the melody in the song Aneuk Yatim written by Rafly Kande using Western music theory. The purpose of this study is to determine the melody analysis method of pop music in Indonesia in general and regional pop music in particular. The approach taken is a qualitative approach, with descriptive analysis methods, assisted by ethical and emic approaches to facilitate the smoothness of the data search process. The selection of methods and approaches is carried out through documentation, observation, and interviews with participants. The form and structure of the melody in the song Aneuk Yatim, written by Rafly Kande, consists of two parts with a tempo of 60 bpm, each of which is divided into two sentences / periods. The sentences are arranged based on various forms of motifs, each of which has a melody and scale that is repeated in the next period / sentence with a slight change in the melody at the end of the figures (closing phrase). The scale used in this song is the Original Minor and Harmonious Minor, with sequences development techniques, diminished, and augmented. The results of this study are expected to become a reference and reference in the perspective of formal objects and material objects, related to the analysis of the form and structure of the melody, the development of melodic patterns discussed in Western music theory.