======================== unified (from filesystem) ========================
                                         'bitrate'  '186.538'
                                        'duration'  '200'
                                          'artist'  'Iron and Wine'
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                                         'release'  'Our Endless Numbered Days'
                                           'title'  'Sunset Soon Forgotten'
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                                      'lastfmtags'  "['folk', 'indie', 'acoustic', 'singer-songwriter', 'mellow']"
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie'
                                             'bpm'  '89.256'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

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'TBPM' (BPM (beats per minute))                     '89.256'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Sunset Soon Forgotten'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Iron and Wine'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk', 'indie', 'acoustic', 'singer-songwriter', 'mellow']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.519189'

========================== row from database ==========================
                                              'id'  1259348
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Iron and Wine - Iron & Wine/Our Endless Numbered Days/04 sunset soon forgotten.mp3
                                         'working'  None
                                         'bitrate'  186
                                    'duration_sec'  200
                                           'genre'  ifs-songwriter-indie
                                        'filesize'  4667825
                                           'mtime'  1636400523
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos & 04 sunset soon forgotten ifs songwriter indie
                                      'tag_artist'  Iron and Wine
                                     'tag_release'  Our Endless Numbered Days
                                       'tag_title'  Sunset Soon Forgotten
                                             'bpm'  89.256
                                    'search_title'  'forgotten':3 'soon':2 'sunset':1
                                   'search_artist'  'and':2 'iron':1 'wine':3
                                  'search_release'  'days':4 'endless':2 'numbered':3 'our':1
                                     'search_rest'  '00singer':1 'eos':3 'forgotten':6 'ifs':7 'indie':8 'songwriter':2 'soon':5 'sunset':4
                                    'search_combo'  '00singer':11 'and':5B 'days':10C 'endless':8C 'eos':13 'forgotten':3A,16 'ifs':17 'indie':18 'iron':4B 'numbered':9C 'our':7C 'songwriter':12 'soon':2A,15 'sunset':1A,14 'wine':6B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['folk', 'indie', 'acoustic', 'singer-songwriter', 'mellow']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400522.6644583  (2021-11-08 20:42:02)
                             'size'  4667825