# Full duet synchronization
To do this we need to enter full duet mode. To do this click **Full duet mode** button on the toolbar ([](https://docs.powerkaraoke.com/uploads/images/gallery/2024-12/2gTimage.png)) or select **Enable full duet mode** from **Synchronize **menu. Duet tab control will appear above the lyrics editor.
[](https://docs.powerkaraoke.com/uploads/images/gallery/2024-12/JXhimage.png)
Duet tabs allow switching between duet modes. No duets is for editing lyrics -- it displays the entire text of the song. The other three are for each of the duet roles.
Selecting **Singer 1** tab will activate **Singer 1** duet mode. It will dim the lyrics that are not assigned for Singer 1 and preview will show Singer 1 lyrics only.
Duet tabs are used to synchronize the duet song. Unfortunately synchronizing duet songs takes three times as long as regular songs -- you have to synchronize part for both singers, and then individual parts for each of the two singers.
To continue with the tutorial try synchronizing the lyrics with the music. Select **Both **duet tab, click **Synchronize entire song **button on the toolbar, and synchronize the first and the last verse of the song. Then select **Singer 1** tab, click **Synchronize entire song **button again and synchronize the second and the third verse. And finally synchronize Singer 2 -- this time start in the middle of the second verse.
Please note that synchronization labels in the soundtrack panel are not visible in **No duets** mode -- you need to activate one of the duet tabs to display and edit them.