Here are some examples of traditional musical instruments in Indonesia based on the search results:

1. Angklung: A traditional musical instrument from West Java that has become famous worldwide. It is played by shaking it using your hands, and it produces a melodious sound[1].
2. Kecapi: A traditional musical instrument from West Sumatra that is played by plucking the strings. It is usually played to accompany traditional dances or songs[1].
3. Kendang/Gendang: A traditional percussion instrument that is commonly used in gamelan music. It is played by hitting the drum with a stick or your hand[1].
4. Slenthem: A traditional musical instrument from Central Java that is played by striking the metal bars with a mallet. It is usually played to accompany gamelan music[1].
5. Tifa: A traditional musical instrument from Papua that is made from wood and animal skin. It is played by hitting the skin with your hand or a stick, and it produces a loud, rhythmic sound[1].
6. Kolintang: A traditional musical instrument from Minahasa, North Sulawesi, that is shaped like a trapezoid with wooden blades of different sizes. It is played by striking the blades with a mallet, and it produces a harmonious sound[2].
7. Sasando: A traditional musical instrument from Rote Island, East Nusa Tenggara, that is made from bamboo and palm leaves. It is played by plucking the strings, and it produces a soothing sound[1].
8. Bonang: A traditional musical instrument from Central Java that is played by striking the metal plates with a mallet. It is usually played to accompany gamelan music[3].
9. Aramba: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[3].
10. Serunai: A traditional wind instrument from Aceh that is made from wood and is played by blowing into it. It produces a loud, sharp sound[4].
11. Suling: A traditional wind instrument that is similar to a flute. It is played by blowing into it, and it produces a melodious sound. It is commonly used in traditional music from Java and Bali[5].
12. Gamelan: A traditional musical ensemble that is commonly found in Java and Bali. It consists of various percussion and melodic instruments, such as kendang, bonang, and saron[5].
13. Garantung: A traditional musical instrument from Batak Toba, North Sumatra, that is made from wood and is played by striking the wooden blades with a mallet. Each blade produces a different note, and it is usually played to accompany traditional dances[2].
14. Pupuik Tanduak: A traditional musical instrument from West Sumatra that is made from bamboo and is played by striking it with a stick. It produces a rhythmic sound that is similar to a drum[2].
15. Lalove: A traditional musical instrument from Central Sulawesi that is made from bamboo and is similar to a flute. It is usually played to accompany traditional dances, and it is considered a sacred instrument[2].
16. Rapai: A traditional musical instrument from Aceh that is made from wood and is played by hitting it with your hand. It produces a rhythmic sound that is similar to a drum[6].
17. Berenguh: A traditional musical instrument from West Kalimantan that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a trumpet[6].
18. Canang: A traditional musical instrument from West Sumatra that is made from bamboo and is played by blowing into it. It produces a sound that is similar to a flute[6].
19. Celempong: A traditional musical instrument from West Sumatra that is made from bamboo and is played by hitting it with a stick. It produces a rhythmic sound that is similar to a drum[6].
20. Geundrang: A traditional musical instrument from Aceh that is made from wood and is played by hitting it with a stick. It produces a rhythmic sound that is similar to a drum[6].
21. Tambo: A traditional musical instrument from West Sumatra that is made from bamboo and is played by hitting it with a stick. It produces a rhythmic sound that is similar to a drum[6].
22. Taktok Trieng: A traditional musical instrument from Aceh that is made from wood and is played by hitting it with a stick. It produces a rhythmic sound that is similar to a drum[6].
23. Arbab: A traditional musical instrument from Aceh that is made from wood and is played by hitting it with a stick. It produces a rhythmic sound that is similar to a drum[6].
24. Bangsi Alas: A traditional musical instrument from Aceh that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
25. Ole-ole: A traditional musical instrument from Aceh that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
26. Sarune Bolon: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
27. Sarune Bulu: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
28. Gordang: A traditional musical instrument from North Sumatra that is made from wood and is played by hitting it with a stick. It produces a rhythmic sound that is similar to a drum[6].
29. Odap: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
30. Hesek: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
31. Oloan: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
32. Panggora: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
33. Doal: A traditional musical instrument from North Sumatra that is made from bamboo and is played by blowing into it. It produces a unique sound that is similar to a flute[6].
34. Serune Kale: A traditional musical instrument from Aceh that is made from wood and is played by blowing into it. It produces a unique sound that is similar to a flute[6].

 

Alat alat musik tradisional