======================== unified (from filesystem) ========================
                                         'bitrate'  '217.574'
                                        'duration'  '187'
                                          'artist'  'Deerhoof'
                                     'text_people'  'Greg Saunier/John Dieterich/Satomi Matsuzaki'
                                         'release'  'Friend Opportunity'
                                           'title'  'Believe E.S.P.'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['indie', 'noise', 'indie rock', 'experimental', 'noise rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '90.2'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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'TALB' (Album/Movie/Show title)                     'Friend Opportunity'
'TBPM' (BPM (beats per minute))                     '90.2'
'TCOM' (Composer)                                   'Greg Saunier/John Dieterich/Satomi Matsuzaki'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2007-01-23'
'TIT2' (Title/songname/content description)         'Believe E.S.P.'
'TKEY' (Initial key)                                '5A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Deerhoof'
'TPE2' (Band/orchestra/accompaniment)               'Deerhoof'
'TPUB' (Publisher)                                  'Kill Rock Stars'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Release type'                                 'No Tag'
'TXXX:Rip date'                                     '2006-12-08'
'TXXX:Source'                                       'No Tag'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'noise', 'indie rock', 'experimental', 'noise rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.83 dB'
'TXXX:replaygain_track_peak'                        '0.412415'

========================== row from database ==========================
                                              'id'  1274202
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Deerhoof/Friend Opportunity/deerhoof.friend opportunity.03.believe e.s.p.mp3
                                         'working'  None
                                         'bitrate'  217
                                    'duration_sec'  187
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  5103017
                                           'mtime'  1638554755
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos deerhoof.friend opportunity.03.believe e.s.p ifs songwriter indie rock
                                      'tag_artist'  Deerhoof
                                     'tag_release'  Friend Opportunity
                                       'tag_title'  Believe E.S.P.
                                             'bpm'  90.2
                                    'search_title'  'believe':1 'e':2 'esp':5 'p':4 's':3
                                   'search_artist'  'deerhoof':1
                                  'search_release'  'friend':1 'opportunity':2
                                     'search_rest'  '00singer':1 '03':8 'believe':9 'deerhoof':4 'deerhooffriend':6 'e':11 'eos':3 'esp':14 'friend':5 'ifs':15 'indie':16 'opportunity':7 'opportunity03believe':10 'p':13 'rock':17 's':12 'songwriter':2
                                    'search_combo'  '00singer':9 '03':16 'believe':1A,17 'deerhoof':6B,12 'deerhooffriend':14 'e':2A,19 'eos':11 'esp':5A,22 'friend':7C,13 'ifs':23 'indie':24 'opportunity':8C,15 'opportunity03believe':18 'p':4A,21 'rock':25 's':3A,20 'songwriter':10
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'noise', 'indie rock', 'experimental', 'noise rock']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1638554755.4080575  (2021-12-03 19:05:55)
                             'size'  5103017