As Apple products fans, I'm sure you have the idea that tether the iPod and the iPhone. Unfortunately, iTunes cannot help you upload any file from any Apple products, neither iPod nor iPhone. In this circumstance, to transfer music from iPod to iPhone, you need a third media to extract the file from iPod, then sync it to iPhone.
iPod to Computer Transfer is what can help you a lot. This powerful program can transfer any file including songs, videos, photos, play lists, etc. to computer with ease.
If you have interests in it, you may free download this powerful software. And the follow us step by step.
Guide: How to Transfer Music from iPod to iPhone?
Run the program
After you download and install the iPod to iPhone music transfer, just run the program. Then use the USB cable to connect the iPod to your computer, you will see the shown up device on the interface.
Mark the Music you Need
Hit "Music", all your iPod music will be appear on the interface of the program. Then mark all the music you want to transfer to your iPhone.
Export
Now you can export the music by clicking "Export" button, and select "Export to iTunes" mode on the follow screen.
Just a moment later, the process will be completed. Then you can sync the music on the iTune to your iPhone. That's it! Don't you think it's very ease to get it? As the free trial is available, please feel free to download it here to have to try.
If you are using Mac. You can switch to iPod to Mac Transfer to transfer music from iPod to iPhone on Mac computer.
As Apple products fans, I'm sure you have the idea that tether the iPod and the iPhone. Unfortunately, iTunes cannot help you upload any file from any Apple products, neither iPod nor iPhone. In this circumstance, to transfer music from iPod to iPhone, you need a third media to extract the file from iPod, then sync it to iPhone.
Run the program 
Mark the Music you Need 
Export 