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The Allegretto for Piano Trio, WoO 39, in B-flat major is a composition for piano trio by Ludwig van Beethoven that was composed in 1812 as a gift for Maximiliane Brentano, the then ten-year-old daughter of his friend Antonie Brentano. Eight years later he also dedicated the Piano Sonata Op. 109 to Maximiliane.
The piece has a simple A-B-A structure, in keys of C minor – A-flat major – C minor. Johnson call it a “perfectly balanced ternary piece” and continues: “the 6/8 meter arpeggiation of the main theme is the sort of thing that Beethoven might indeed have spun.” [4] David Truslove describes: “Momentum in the outer panels is twice interrupted by the arrival of two disquieting chords ...
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L'istesso, L'istesso tempo, or Lo stesso tempo – at the same speed; L'istesso is used when the actual speed of the music has not changed, despite apparent signals to the contrary, such as changes in time signature or note length (half notes in 4 4 could change to whole notes in 2 2, and they would all have the same duration) [18] [19]
Aluminized steel can be made using a variety of processes, cladding, hot dipping, galvanic coating, metallizing, and calorizing, but the most effective process is hot dipping. The process of hot dipping starts by cleaning the steel, then placing the steel in a bath of Al-11%Si at a temperature of 988K and shaken, then pulled out and air dried. [5]
6082 aluminium alloy is an alloy in the wrought aluminium-magnesium-silicon family (6000 or 6xxx series). It is one of the more popular alloys in its series (alongside alloys 6005, 6061, and 6063), although it is not strongly featured in ASTM (North American) standards.
7075 aluminium alloy (AA7075) is an aluminium alloy with zinc as the primary alloying element. It has excellent mechanical properties and exhibits good ductility, high strength, toughness, and good resistance to fatigue.
The density of liquid aluminum is 2.3 g/ml at temperatures between 950 and 1000 °C (1750° to 1830°F). The density of the electrolyte should be less than 2.1 g/ml, so that the molten aluminum separates from the electrolyte and settles properly to the bottom of the electrolysis cell.