Bach (Austria/Prussia, can also be read as friendship Austria & Prussia)
Vienna on a Friday evening in summer
"Done!" Prussia sighed in relief. Austria and him had had dinner on the patio of Austria's house when suddenly, thunder had started to roll. Initially, they had hoped the thunderstorm would drift past but instead, the sky had become darker and darker … At last, they had decided to carry the table, both chairs and the leftovers from their dinner inside.
"Close call," sighed Austria, pointing at the first drops of rain at the patio door with his chin. He flopped down on his sofa with another sigh.
"This week was quite stressful as a whole," he confessed to Prussia. "Summer break starts soon, but there are a lot of things that need to be done by that time…." He trailed off. "Some Bach would be nice now."
"Pfff, Specs, there's a thunderstorm with heavy rain raging outside, and the first thing you think of is a stream?"
Austria tsked but didn't react otherwise. The lack of a snappy comeback made Prussia look more closely. There were dark bags under Austria's eyes. He looked tired … too tired to care about coming up with a witty remark? Quite worrying!
Most of all, it was this that made Prussia fetch his flute and a few sheets of music from his travel bag. He habitually carried the instrument from Berlin to Vienna and back since there was always the possibility Austria and him would play a duet. Not bothering to use a music stand, he put the sheet music on the sofa's backrest while seating himself on the armrest.
"Would Bach's Partita for traverso solo in A minor be okay with you?"
"Lovely," Austria sighed. It was amazing how much heartfelt gratitude an otherwise reserved person like him could put in this one word. It made Prussia want to reach over and brush stray strands of hair out of Austria's face.
Instead, he put the flute to his lips, and the first notes of the Partita for traverso solo drifted through Austria's living room.
Notes:
Inspired by backstroke-for-gays' headcanon about Prussia listening to Bach's Goldberg Variations during a meeting on tumblr as well as last week's weather. The Partita for traverso solo (Partita für Flöte allein, BWV 1013) is one of multiple pieces Johann Sebastian Bach (1685-1750) has written for transverse flute, a predecessor of today's flute.