gadget recommendation

[michaelmorin]

Hello,

I'm looking for a product that will emit a range of reference tones to practice with to

help my intonation. Any thoughts on products you have tried and liked are

welcomed.

Thanks















I didn't find the right solution from the internet.

References:
www.idrs.org/IDRSBBS/viewtopic.php?id=170

2D Promotional Video