This month’s carefully sifted new releases include some quirky Americana and a piano filled with ping-pong balls. A Baroque specialist plays some ripe orchestral transcriptions and a neglected cello concerto gets a new ending. Six Danish symphonies blow the cobwebs away, and we’ve two discs of music by a 20th-century German master. There are songs from Vienna, and a cappella choral music from Russia. A contemporary English composer celebrates the town of his birth. The most soothing of requiem settings contrasts with an hour of Soviet ballet music, prompting memories of circuses and Sunday-night telly. There’s an enjoyable piano recital and a DVD demonstrating that some artists get better and better as they age.