======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '138'
                                          'artist'  'The Formations'
                                     'text_people'  'Akines/Huff'
                                         'release'  'Classic Cuts Northern Soul'
                                           'title'  'At The Top Of The Stairs'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['northern soul', 'soul', 'oldies', 'all', 'nice find']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '26'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'funk or soul-soul'
                                             'bpm'  '133.756'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:icMatch_Tempo:Mus'                            'None'
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'TALB' (Album/Movie/Show title)                     'Classic Cuts Northern Soul'
'TBPM' (BPM (beats per minute))                     '133.756'
'TCOM' (Composer)                                   'Akines/Huff'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-soul'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'At The Top Of The Stairs'
'TKEY' (Initial key)                                '1B'
'TLEN' (Length)                                     '138000'
'TPE1' (Lead performer(s)/Soloist(s))               'The Formations'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Original Selection'
'TRCK' (Track number/Position in set)               '3/26'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['northern soul', 'soul', 'oldies', 'all', 'nice find']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.22 dB'
'TXXX:replaygain_track_peak'                        '0.354011'

========================== row from database ==========================
                                              'id'  1290483
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/at the top of the stairs.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  138
                                           'genre'  funk or soul-soul
                                        'filesize'  2234062
                                           'mtime'  1620573084
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] top of stairs funk soul soul
                                      'tag_artist'  The Formations
                                     'tag_release'  Classic Cuts Northern Soul
                                       'tag_title'  At The Top Of The Stairs
                                             'bpm'  133.756
                                    'search_title'  'at':1 'of':4 'stairs':5 'the':2 'top':3
                                   'search_artist'  'formations':2 'the':1
                                  'search_release'  'classic':1 'cuts':2 'northern':3 'soul':4
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'funk':10 'loose':3,4 'of':8 'soul':11 'stairs':9 'top':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':12 'at':1A 'classic':8C 'cuts':9C 'files':16,17 'formations':7B 'funk':21 'loose':14,15 'northern':10C 'of':4A,19 'soul':11C,22 'stairs':5A,20 'the':2A,6B 'top':3A,18 'unsorted':13
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['northern soul', 'soul', 'oldies', 'all', 'nice find']
                                        'tag_date'  2005
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620573083.9940605  (2021-05-09 17:11:23)
                             'size'  2234062