Do these first:

• Install Homebrew

  # In your Mac Terminal, run:
  $ ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
  

  # In your ~/.bashrc, ~/.bash_profile, or ~/.zshrc (for zsh users)
  # ...
  export PATH=/usr/local/bin:$PATH
  

  $ brew doctor
  

   [full instructions]
• Install the latest Mac C and C++ compilers

  # Get the latest version of Xcode from the Mac App Store
  # Here: https://developer.apple.com/xcode/
  

  # Open Xcode, then press `Command + ,` to open preferences
  

  # Click `Downloads` at the top of the window
  # Then click `Install` next to `Command Line Tools`
  

   [full instructions]

First, update and refresh howebrew.

brew update

Install mpd, the music player daemon

brew install mpd

Install mpc, a command line music player client

brew install mpc

Instal ncmpcpp, a powerful yet lightweight mpd client

brew install ncmpcpp