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All Journal An-Nuqthah As-sunniyyah PANDALUNGAN : Jurnal Pengabdian kepada Masyarakat
Arifandi, Moh. Zainal
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Religion Aerospace Engineering Humanities Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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Journal : As-sunniyyah

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Transposisi Akord Pada Lagu “Lir-Ilir” Menggunakan Integer Model of Pitch Arifandi, Moh. Zainal
AS-SUNNIYYAH Vol 4 No 02 (2025): Maret
Publisher : UAS PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62097/assunniyyah.v4i02.2165

Abstract

Matematika berkaitan erat dengan seni musik. Bahkan para ahli matematika pun menyukai dan berbakat dalam bidang musik seperti Pythagoras menjadi pelopor untuk mempelajari teori musik. Dalam seni musik, transposisi mengacu pada perubahan tangga nada atau akor menjadi lebih rendah atau lebih tinggi. Sedangkan dalam matematika transposisi dapat didefinisikan sebagai fungsi modulo. Misalkan n adalah bilangan bulat modulo 12, maka fungsi didefinisikan dengan rumus : , yang mana Z12 himpunan bilangan bulat modulo . Penelitian ini bertujuan agar memudahkan pemain musik atau musisi untuk mentranpose akord agar mudah menjangkau nada dari seorang vokalis pada lagu “lir-ilir”. Dalam penelitian ini diperoleh hasil transposisi acord dari nada dasar C Major di trasnposisikan ke semua nada dasar pada suatu tangga nada Major.
Pengembangan Perangkat Pembelajaran Matematika Berbasis Open Ended Untuk Meningkatkan Kemampuan Berpikir Kreatif Siswa Kelas VIII Pada Materi SPLDV Ummah, Bintana Inashlahatul; Utami, Yudy Tri; Arifandi, Moh. Zainal
AS-SUNNIYYAH Vol 4 No 01 (2024): September
Publisher : UAS PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62097/assunniyyah.v4i01.1882

Abstract

This research is motivated by the low creative thinking skills of students and there are still many teachers who have difficulty in developing learning tools that are in accordance with the demands of the 2013 curriculum learning. The purpose of this research is to develop open ended based mathematics learning tools to improve the creative thinking skills of grade VIII students on SPLDV material that is practical, valid and effective. The device development model chosen in this research is the Thiagarajan, Semmel & Semmel (4-D) model. This model consists of four stages, namely defining, designing, developing and disseminating. The learning tools developed in this research are in the form of lesson plans, student activity sheets and creative thinking skills tests. The research instruments used are in the form of device validation sheets, learning implementation observation sheets, student activity observation sheets and student response questionnaires. From the results of the validation test data analysis, the average percentage score for: (1) lesson plas which is 4.60 with a valid category, (2) Student Activity Sheet which is 4.57 with a valid category, (3) Creative Thinking Ability Test which is 4.74 with a valid category. The observation results of the implementation of learning devices showed an average result of 83.63% in the good category. The overall average of student activity is 83% which is classified as an active category. The results of the creative thinking ability test showed that the percentage of classical completeness was 80%. And students' response to the developed learning tools is positive. Thus, the open ended based learning tools developed are valid, practical and effective to improve the creative thinking ability of students in grade VIII.
Co-Authors Akhmad Mukhlis Ulum, Darul Ummah, Bintana Inashlahatul Yudy Tri Utami, Yudy Tri