GAMELAN is the most popular Indonesian ensemble.
I would have to say either valve trombone or baritone/euphonium.
The answer that best fits the blank above is GOTHIC CATHEDRAL. Gothic cathedrals are actually common architectures during the 12th century in France and Germany. This originated from the Romanesque architecture and is being well known by its soaring and open spaces, flying buttresses, and stained glass windows.
The orthogonal lines in the work merge at the vanishing point. In a perspective drawing, the artist uses parallel diagonal lines which meet and diminish to a vanishing point. These lines are called orthogonal and create the perspective and a more realistic view. The vanishing point offers the painting a three-dimensional look.
