You first need to learn the Wind God's Aria from Gale Island, but in order for you to get inside, you will need the Iron boots from Ice Ring Isle.
After you learn the song, you will be able to find Makar in the waterfall on Forest Haven
If you are talking about the Second Sage, go to Forest Haven, Get out your Grappling hook, and swing into the Water Fall with the Musical Notes coming out. Then, you will meet Makar. He has the Violin.
There is no violin in that Zelda game. Unless you mean the one that Makar has, YOU can't obtain it but you find him in the forest haven behind the waterfall, (you use your grappling hook to get in there) play the earth Gods lyric, then take him to the earth Temple.
Probably with a cheat.
In the the forbidden woods or in the wind temple.
you can go without him thats what i did
you have to find the hookshot put on the iron boots and hook onto the giant statues target to pull it over
The Forest Haven (Where you can fin the Great Deku Tree and Makar) Is 3 Sea Chart blocks South of Dragon Roost Island (Where you can find Medli.)
one is legend of Zelda wind waker.
After you beat the Tower of the Gods, you can either do that, or you can do the earth temple. It's optional. But if you want to get past the wind, you need the iron boots.
They are Medli w/ da harp and Makar w/ da violin. Medlis at dragon roost island and Makar is in a water fall. U can hear and see the music notes if ur close 2 them. With Medli, u need 2 use the grappling hook 2 get over 2 her and w/ Makar, u use the grappling hook and u swing into the waterfall.
You need to play the wind God's aria with makar
Medli has the first instrument and Makar has the second but the sages are Laruto and Fado