lfzawacki/musical-artifacts

%drumkit_list
  - @drumkits.each do |drumkit|
    - if is_valid_node?(drumkit)
      %drumkit
        = render 'hydrogen_node', node: drumkit

  - @patterns.each do |pattern|
    - if is_valid_node?(pattern)
      %pattern
        = render 'hydrogen_node', node: pattern

  - @songs.each do |song|
    - if is_valid_node?(song)
      %song
        = render 'hydrogen_node', node: song