The advantages of synchronizing your workout to music are pretty straightforward:
1. Working out to a beat helps you maintain a certain speed, so you don't start slacking at the half-way point.
2. Coordinating tempos and action can make your routine feel more like a game.
There are two ways to count beats while strength training. Using curls as an example, you can pick songs that have 70 beats per minute and lift and lower your weight roughly every second—ending on each beat. Alternatively, you can use songs with 140 BPM and lift the weight on one beat and lower it on the next.
Your curling speed is the same in both cases, but some people prefer to end each rep on the beat, while others like to hear a beat each time they lift or lower a weight. It's easier to feel than describe. To that end, you can experiment yourself using the playlist below. Half the songs have 70 BPM and the other half have 140 BPM. If these aren't quit right, you can double (or halve) any other BPMs to find a better fit.
Here's the full playlist:
OneRepublic - Feel Again - 70 BPM
Wiz Khalifa - Work Hard, Play Hard - 70 BPM
Coldplay - Paradise - 70 BPM
Korn & Skrillex - Get Up! - 70 BPM
Kanye West & Jay-Z - N****s in Paris - 70 BPM
Britney Spears - Womanizer - 140 BPM
Baauer - Harlem Shake - 140 BPM
Katy Perry – Peacock - 140 BPM
Michael Jackson - Beat It - 140 BPM
U2 - Vertigo - 140 BPM
To find more workout songs, check out the free database at Run Hundred. You can browse by genre, tempo, and era to find the best songs to rock your workout.