def all_recordings
      opts = {
        headers: true,
        header_converters: :symbol,
        encoding: 'utf-8'
      }
      CSV.read(DIFILE, opts).map(&:to_hash)
    end
def all_recordings
      opts = {
        headers: true,
        header_converters: :symbol,
        encoding: 'utf-8'
      }
      CSV.read(DIFILE, opts).map(&:to_hash)
    end
Returns hash array of all
 recordings in DIANE file