I have bold font and logos in my concept. There are 3 bars, you can call it sound bar (graphic equalizer) or you can name it a growth in marketing development. For the music keywords I have a guitar on the bottom of logogram combining with logotype.
This logo has a multiple meaning, on the one side is the music and the other is marketing. Yes the bars like digital displays [if you turn on the bass high you will see the digital display higher] and on the other hand is a statistic of your market who always rises.