======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '241'
                                          'artist'  'Vim!'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '02-wakey-wakey-wales-its-xmas'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'k1mo likes', 'idm', 'chiptune', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '139.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '139.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         '02-wakey-wakey-wales-its-xmas'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vim!'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '110,183'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronic', 'k1mo likes', 'idm', 'chiptune', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-7.04 dB'
'TXXX:replaygain_track_peak'                        '0.718194'

========================== row from database ==========================
                                              'id'  153759
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/monotonik/monotonik-archives-vol-1/[mtk012]-vim-02-wakey-wakey-wales-its-xmas.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  241
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  4838711
                                           'mtime'  1621705465
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm monotonik monotonik archives vol 1 [mtk012] vim electronic we beeps or chip or pico
                                      'tag_artist'  Vim!
                                     'tag_release'  None
                                       'tag_title'  02-wakey-wakey-wales-its-xmas
                                             'bpm'  139.2
                                    'search_title'  '02':1 '02wakeywakeywalesitsxmas':7 'its':5 'wakey':2,3 'wales':4 'xmas':6
                                   'search_artist'  'vim':1
                                  'search_release'  
                                     'search_rest'  '1':4 'archives':2 'beeps':10 'chip':12 'electronic':8 'monotonik':1 'mtk012':5,6 'or':11 'pico':13 'vim':7 'vol':3 'we':9
                                    'search_combo'  '02':1A '02wakeywakeywalesitsxmas':7A '1':12 'archives':10 'beeps':18 'chip':20 'electronic':16 'its':5A 'monotonik':9 'mtk012':13,14 'or':19 'pico':21 'vim':8B,15 'vol':11 'wakey':2A,3A 'wales':4A 'we':17 'xmas':6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'k1mo likes', 'idm', 'chiptune', 'ambient']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621705465.4383597  (2021-05-22 19:44:25)
                             'size'  4838711