Usually the paired string will have one of them wound. That means it has a very fine wire wound around it, making it thicker. That will be the lower version of the note. The lighter, usually plan nylon or fluorocarbon, will be in the sequence with the other notes and the lower note tuned an octave lower.
It will have the basic G, C, E, A tuning, with the two additional strings. These are paired with the C and A strings. The second "A" string is tuned to the same note as the other "A" string. The additional "C" string is going to be either an octave up or down. The strings in order will be G, C, C', E, A, A.
There are websites which tells you what each string can sound like. Play the sound and turn the tuning pegs until the string on your ukulele matches up with the virtual string on the computer. Repeat with the rest of the strings. A link to a good website for ukulele tuning is in the 'Related Links' section. Most of the smart phones also have a an app that can be downloaded for tuning as well.
To tune a ukulele using a piano, you can match the pitch of each ukulele string to the corresponding notes on the piano. The standard tuning for a ukulele is G-C-E-A. Start by tuning the G string to the G note on the piano, then tune the C string to the C note, the E string to the E note, and the A string to the A note. Use a tuner or an app to help you get the strings in tune.
It will depend on the tuning and size of the instrument. On the baritone size the lowest note is going to be the D string. On the GCEA tuned ukulele, it will be the C string.
You can improve the sound quality of your ukulele by adjusting the tuning notes to ensure they are in tune with each other. This can be done by using an electronic tuner or tuning app to make sure each string is at the correct pitch. Tuning your ukulele regularly will help maintain its sound quality.
To tune your ukulele using a piano, you can match the pitch of each string on the ukulele to the corresponding note on the piano. The standard tuning for a ukulele is G-C-E-A, so you would tune each string to those notes on the piano. Start by tuning the G string to the G note on the piano, then tune the C string to the C note, the E string to the E note, and the A string to the A note. Use a tuner or your ear to adjust the tension of each string until it matches the pitch of the piano note.
It still has the basic 'Your Dog Has Fleas' G, C, E, A tuning, only each of the strings now has a match. The second "G" string is going to be tuned an octave up or down. The second "C" string is also an octave up or down. The second "E" and "A" strings are tuned the same as the other ones. The string line up will be like this G, G', C, C', E, E, A, A.
The 6 string has doubled first and third strings tuned in octaves. Tuning 6 String: G CC E AA - adding an octave higher
To accurately tune the octaves on your guitar, use an electronic tuner or a tuning app to ensure each string is in tune with the correct octave. Adjust the tuning pegs until the pitch matches the desired octave for each string. Practice listening carefully to ensure accuracy in tuning.
There really is no reason you can't. EADG is the standard tuning for a mandolin, and you can get ukulele strings for those notes. It isn't going to sound like a mandolin, but it can be played the same way.
Start by securing the string to the bridge securely. This can require a knot, or a wrap technique, or even a small bead on the end of the string. Take the other end of the string and insert it in the tuning peg. Pull tight on the string and turn the peg until the string is taut. You do not want to have more than one layer of string on any of the tuning pegs. Cut any loose ends off the string. Repeat these steps for the rest of the strings on the ukulele.
That will depend a great deal on the tuning of the Ukulele. And there are a number of D's on the Uke. The 1st string 5th fret should give a D on the standard tuned Uke.