======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '327'
                                          'artist'  'The Sinners'
                                     'text_people'  ''
                                         'release'  'Come Fly With Us'
                                           'title'  'As Lovers Should'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-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-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['swedish', 'russian', 'umea syndrom', 'four', 'rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '145.163'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Come Fly With Us'
'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'As Lovers Should'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '327836'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Sinners'
'TPE2' (Band/orchestra/accompaniment)               'The Sinners'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['swedish', 'russian', 'umea syndrom', 'four', 'rock']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.13 dB'
'TXXX:replaygain_track_peak'                        '0.390034'

========================== row from database ==========================
                                              'id'  1348834
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/The Sinners - As Lovers Should.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  327
                                           'genre'  rock-pop
                                        'filesize'  5246848
                                           'mtime'  1620392814
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock rock pop
                                      'tag_artist'  The Sinners
                                     'tag_release'  Come Fly With Us
                                       'tag_title'  As Lovers Should
                                             'bpm'  145.163
                                    'search_title'  'as':1 'lovers':2 'should':3
                                   'search_artist'  'sinners':2 'the':1
                                  'search_release'  'come':1 'fly':2 'us':4 'with':3
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rock':3 'swedish':2
                                    'search_combo'  '00poprockelectronic':10 'as':1A 'come':6C 'fly':7C 'lovers':2A 'pop':13 'rock':12 'should':3A 'sinners':5B 'swedish':11 'the':4B 'us':9C 'with':8C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'russian', 'umea syndrom', 'four', 'rock']
                                        'tag_date'  1990
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620392813.71337  (2021-05-07 15:06:53)
                             'size'  5246848