Harmonic mixing is when you mix two songs together that have a similar type of sound that goes well together. It's like playing with blocks – if you have two blocks that fit nicely together, they make a good tower. In music, if you have two songs that fit nicely together, they will sound good when played one after the other.
To make sure two songs fit together harmonically, you need to look at their musical characteristics. Every song has a key, which is like the main color of the block. You want to make sure that the two keys match or are very close to each other.
It's like coloring with crayons: if you use two colors that are close together, they blend well and look nice. If you use two colors that clash, it looks bad. In music, if you use two different keys that clash, it sounds bad.
In addition to matching keys, you also want to make sure that the melodies and chords of the two songs work together. If they're too busy or complicated, they can clash and sound bad. But if they're simple and complementary, they'll sound great when mixed together.
Harmonic mixing is like making a musical puzzle. You want to find the pieces that fit together perfectly to create a smooth, enjoyable listening experience. So if you want to be a good DJ, you need to know how to harmonic mix!