1) chances are that Motorola supports headphone jacks. (innies, as you called them). You need a 1/8 inch phono cable to go into the innie. You’ll need to see what the size is for the speaker at her dance club. 2) if her Motorola is reasonably new, it will have a place for a micro-SD card. But a card- not expensive, maybe $8 for 32 gb, which is a lot of music. 3) Install the microSD card on her phone. 4) on YOUR computer, plug in your USB from the PC to the phone using the charging port. 5) Her phone will say “connected for charging” and then ask you if you want to do something else. You select FILES or FILE TRANSFER, something like that. 6) Once you have told the phone you want to do FILE TRANSFER, you will her a beep and then open your Windows File Manager. 7) Look for her phone as a device (left side) – it will show Motorola or the phone name or something similar. 8) Click that icon for the phone, and you will see two device beneath – the PHONE and the Storage card. 9) Make a directory on the storage card called Music 10) Then using normal Windows copy/paste functions, go to YOUR music folder on the PC, click COPY (or select all / copy) . 11) Navigate to the PHONE’s storage card – Music directory. It will be empty. 12) On Windows File Manager, click PASTE and the music files will be copied to that location. Question: What music player will she use? There are a zillion of them. She can download one called Pulsar – it’s free and it works well.