Chopin's "Butterfly" et al.

• Liszt's "Transcendental __"
• Exercises performed on benches
• Musical exercises
• Music assignments
• Musical pieces
• Musical practice pieces
• Chopin piano pieces
• Schumann's "Symphonic __"

Wikipedia Word definitions in Wikipedia
Einojuhani Rautavaara's six Etydit (Études), Op. 42 were composed in 1969. According to the composer, the intent in writing these works, each of which explores a single interval , was to "...reintroduce a sonorous, broad piano style using the entire compass ...