Extremely abrasive music could be metal

• The most electropositive and alkaline metal
• Alkaline metal element
• Very reactive metal
• Fancy short musical with European element
• Fragments of music: A, E, and Cs

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ It had a caesium 137 concentration of only 4 becquerels per kilogram. ▪ The caesium chloride lattice is thus said to have 8:8 coordination. ▪ The caesium chloride structure, for example, consists of a cubic structure of cations ...

WordNet Word definitions in WordNet
n. a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal [syn: cesium , Cs , atomic number 55 ]

Wiktionary Word definitions in Wiktionary
alt. A metallic chemical element (''symbol'' Cs) with an atomic number of 55. n. A metallic chemical element (''symbol'' Cs) with an atomic number of 55.

Wikipedia Word definitions in Wikipedia
Caesium or cesium is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28.5 °C (83.3 °F), which makes it one of only five elemental metals that are liquid at or near room temperature ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
caesium \caesium\, Caesium \C[ae]"si*um\, n. [NL., from L. caesius bluish gray.] (Chem.) A rare alkaline metal found in mineral water; -- so called from the two characteristic blue lines in its spectrum. It was the first element discovered by spectrum analysis, ...