======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '139'
                                          'artist'  'Starbuck'
                                     'text_people'  ''
                                         'release'  'Phonoanomalies: A Totally New Recording for Hi-Fi Bugs'
                                           'title'  'Working My Heart To The Bone'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['70s', 'soft rock', 'oldies', 'pop', 'atlanta']"
                                     'discogstags'  "['techno', 'electronic', 'tech house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  '30'
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '108.9'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Phonoanomalies: A Totally New Recording for Hi-Fi Bugs'
'TBPM' (BPM (beats per minute))                     '108.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Working My Heart To The Bone'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Starbuck'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19/30'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic', 'tech house']
'TXXX:lastfmtags'                                   ['70s', 'soft rock', 'oldies', 'pop', 'atlanta']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.572328'

========================== row from database ==========================
                                              'id'  718247
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/v.a. - WFMU - Phonoanomalies - A Totally New Recording for Hi-Fi Bugs/19_-_Starbuck_-_Working_My_Heart_To_The_Bone.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  139
                                           'genre'  loc-unsorted
                                        'filesize'  3344257
                                           'mtime'  1637933106
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm v.a. WFMU 19_ _Starbuck_ _Working_My_Heart_To_The_Bone loc unsorted
                                      'tag_artist'  Starbuck
                                     'tag_release'  Phonoanomalies: A Totally New Recording for Hi-Fi Bugs
                                       'tag_title'  Working My Heart To The Bone
                                             'bpm'  108.9
                                    'search_title'  'bone':6 'heart':3 'my':2 'the':5 'to':4 'working':1
                                   'search_artist'  'starbuck':1
                                  'search_release'  'a':3 'bugs':11 'fi':9 'for':7 'hi':8 'hifi':10 'new':5 'phonoanomalies':1,2 'recording':6 'totally':4
                                     'search_rest'  '19':5 'a':2 'bone':12 'heart':9 'loc':13 'my':8 'starbuck':6 'the':11 'to':10 'unsorted':14 'v':1 'va':3 'wfmu':4 'working':7
                                    'search_combo'  '19':23 'a':10C,20 'bone':6A,30 'bugs':18C 'fi':16C 'for':14C 'heart':3A,27 'hi':15C 'hifi':17C 'loc':31 'my':2A,26 'new':12C 'phonoanomalies':8C,9C 'recording':13C 'starbuck':7B,24 'the':5A,29 'to':4A,28 'totally':11C 'unsorted':32 'v':19 'va':21 'wfmu':22 'working':1A,25
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['70s', 'soft rock', 'oldies', 'pop', 'atlanta']
                                        'tag_date'  1976
                                     'discogstags'  ['techno', 'electronic', 'tech house']

============================== file details ==============================
                                           'mtime'  1637933105.9335737  (2021-11-26 14:25:05)
                             'size'  3344257