The easiest way to transfer music from a PC to an iPhone is by using the iTunes software. Simply connect the iPhone to the PC via USB cable, and sync the music from the iTunes library onto the iPhone. Third-party software, such as Media Monkey, can also be used.
To transfer music from a PC to an iPhone using iTunes, first download the latest version of iTunes from the official Apple website, and follow the instructions to install the software onto the PC being used. Next, open iTunes, and connect the iPhone to the PC using a USB cable. Click on the device when it appears in the iTunes window, click "Music" and tick the box titled "Sync Music." This syncs all songs in the iTunes library onto the iPhone. Alternatively, navigate directly to the iTunes music library, and drag the desired songs or albums directly onto the iPhone.
It is also possible to use third party software like Media Monkey to transfer music from a PC to an iPhone. To do this, download Media Monkey from the official website, and install the software. Connect the iPhone to the PC using a USB cable and drag the desired music from the Media Monkey library onto the iPhone within the software interface.