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
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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