kevin kern - through the arbor
pacific moon - night sky
pacific moon - palace in the snow
The Daydream - dreaming
secret gatden - poem, song from a secret garden, etc.
yiruma - kiss the rain, passing by
Shi Jin - night piano music 5. Flowers ’s smile
Nishimura Yukie-Toilet Paper
Hisaishi Joe-Carrying Me, That Day’s River, etc.
Most of secret garden’s music meets the standards; The same goes for the daydream; Kevin Kern's is slower, maybe you can fall asleep listening to it; most of Nishimura Yukie's music is also slow; Bandari's also meets the standard, soft and slow, but not piano music; Hisaishi Joe Most of the works are also of the gentle type...
The above time is about five or six minutes
In fact, if you really want it to be longer, Beethoven's Moonlight Sonata is quite good. Okay...you can listen to it