From a medieval monk mixed with a fish to the call of an extinct Hawaiian bird, this entertaining show revels in nature’s marvels – real or otherwise ...

If you want a more practical code reader, try this one. Better still, learn the code. The Ludwig Koch method works for a lot of people.

One of Messiaen's main inspirations was the early, pioneering sound recordist and specialist in birdsong Ludwig Koch. Messiaen transcribed many of Koch's birdsong recordings, but he also listened ...

Ludwig Karl Koch was an artist who was born in 1881. The International 3 featured Ludwig Karl Koch's work in the past. The artist died in 1974.