======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '198'
                                          'artist'  'The Matches'
                                     'text_people'  ''
                                         'release'  'E. Von Dahl Killed the Locals'
                                           'title'  'Chain Me Free'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'pop punk', 'indie', 'punk', 'rock', 'alternative']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '135.365'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'E. Von Dahl Killed the Locals'
'TBPM' (BPM (beats per minute))                     '135.365'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Chain Me Free'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Matches'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk rock', 'pop punk', 'indie', 'punk', 'rock', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.34 dB'
'TXXX:replaygain_track_peak'                        '0.337577'

========================== row from database ==========================
                                              'id'  1359340
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Matches/E. von Dahl Killed the Locals/03-the_matches-chain_me_free-fnt.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  198
                                           'genre'  rock-gr-punk
                                        'filesize'  4757846
                                           'mtime'  1622659305
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic von 03 the_matches chain_me_free fnt rock gr punk
                                      'tag_artist'  The Matches
                                     'tag_release'  E. Von Dahl Killed the Locals
                                       'tag_title'  Chain Me Free
                                             'bpm'  135.365
                                    'search_title'  'chain':1 'free':3 'me':2
                                   'search_artist'  'matches':2 'the':1
                                  'search_release'  'dahl':4 'e':1,2 'killed':5 'locals':7 'the':6 'von':3
                                     'search_rest'  '00poprockelectronic':1 'chain':5 'fnt':8 'free':7 'gr':10 'matches':4 'me':6 'punk':11 'rock':9 'the':3 'von':2
                                    'search_combo'  '00poprockelectronic':13 'chain':1A,17 'dahl':9C 'e':6C,7C 'fnt':20 'free':3A,19 'gr':22 'killed':10C 'locals':12C 'matches':5B,16 'me':2A,18 'punk':23 'rock':21 'the':4B,11C,15 'von':8C,14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['punk rock', 'pop punk', 'indie', 'punk', 'rock', 'alternative']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659304.7149518  (2021-06-02 20:41:44)
                             'size'  4757846