======================== unified (from filesystem) ========================
                                         'bitrate'  '191.555'
                                        'duration'  '173'
                                          'artist'  'Cat Power'
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                                      'lastfmtags'  "['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock', 'lo-fi']"
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                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '86.327'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'What Would The Community Think'
'TBPM' (BPM (beats per minute))                     '86.327'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'They Tell Me'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Cat Power'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'lo-fi']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.17 dB'
'TXXX:replaygain_track_peak'                        '0.777126'

========================== row from database ==========================
                                              'id'  1236119
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Cat Power/What Would The Community Think/05-They_Tell_Me.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  173
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  4164226
                                           'mtime'  1620645115
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 05 They_Tell_Me ifs songwriter eos
                                      'tag_artist'  Cat Power
                                     'tag_release'  What Would The Community Think
                                       'tag_title'  They Tell Me
                                             'bpm'  86.327
                                    'search_title'  'me':3 'tell':2 'they':1
                                   'search_artist'  'cat':1 'power':2
                                  'search_release'  'community':4 'the':3 'think':5 'what':1 'would':2
                                     'search_rest'  '00singer':1 'eos':3 'ifs':7 'me':6 'songwriter':2 'tell':5 'they':4
                                    'search_combo'  '00singer':11 'cat':4B 'community':9C 'eos':13 'ifs':17 'me':3A,16 'power':5B 'songwriter':12 'tell':2A,15 'the':8C 'they':1A,14 'think':10C 'what':6C 'would':7C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1996
                                     'discogstags'  ['rock', 'folk rock', 'lo-fi']

============================== file details ==============================
                                           'mtime'  1620645114.5458333  (2021-05-10 13:11:54)
                             'size'  4164226