A yw cadw mewn tiwn wrth chwibanu'n haws na thrwy ganu? Mae Wil Tân yn y stiwdio i brofi. Wil Tân proves that it's easier to keep in tune when whistling, as opposed to singing. Show more
Discover 11,128,835 listings and 277,889 playable programmes from the BBC
A yw cadw mewn tiwn wrth chwibanu'n haws na thrwy ganu? Mae Wil Tân yn y stiwdio i brofi. Wil Tân proves that it's easier to keep in tune when whistling, as opposed to singing. Show more