======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '201'
                                          'artist'  'Burt Bacharach and Elvis Costello'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'll Never Fall in Love Again"
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['singer-songwriter', 'easy listening', 'burt bacharach', 'pop', 'male "
 "vocalist']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '125.006'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TIT2' (Title/songname/content description)         "I'll Never Fall in Love Again"
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Burt Bacharach and Elvis Costello'
'TXXX:Mp3gain_minmax'                               '000,197'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['singer-songwriter',
 'easy listening',
 'burt bacharach',
 'pop',
 'male vocalist']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.470371'

========================== row from database ==========================
                                              'id'  1522115
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Burt Bacharach and Elvis Costello - I_ll Never Fall in Love Again.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  201
                                           'genre'  ifs-unsorted
                                        'filesize'  3219851
                                           'mtime'  1676052991
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] I_ll ifs unsorted
                                      'tag_artist'  Burt Bacharach and Elvis Costello
                                     'tag_release'  None
                                       'tag_title'  I'll Never Fall in Love Again
                                             'bpm'  125.006
                                    'search_title'  'again':8 'fall':5 'i':1 'ill':3 'in':6 'll':2 'love':7 'never':4
                                   'search_artist'  'and':3 'bacharach':2 'burt':1 'costello':5 'elvis':4
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'i':7 'ifs':9 'll':8 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':14 'again':8A 'and':11B 'bacharach':10B 'burt':9B 'costello':13B 'elvis':12B 'fall':5A 'files':18,19 'i':1A,20 'ifs':22 'ill':3A 'in':6A 'll':2A,21 'loose':16,17 'love':7A 'never':4A 'unsorted':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HAP-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']
                                      'lastfmtags'  ['singer-songwriter', 'easy listening', 'burt bacharach', 'pop', 'male vocalist']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676052990.513216  (2023-02-10 19:16:30)
                             'size'  3219851