======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'Sleater-Kinney'
                                     'text_people'  ''
                                         'release'  'All Hands on the Bad One'
                                           'title'  'All Hands on the Bad One'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'riot grrrl', 'female vocalists', 'indie rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '99.080'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'All Hands on the Bad One'
'TBPM' (BPM (beats per minute))                     '99.080'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'All Hands on the Bad One'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sleater-Kinney'
'TRCK' (Track number/Position in set)               '3'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'riot grrrl', 'female vocalists', 'indie rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.78 dB'
'TXXX:replaygain_track_peak'                        '0.423398'

========================== row from database ==========================
                                              'id'  1249293
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Sleater-Kinney/MBZ;#Sleater-Kinney;#All Hands on the Bad One;#03;#All Hands on the Bad One.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  2807284
                                           'mtime'  1621697545
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Sleater Kinney;#All One;#03;#All ifs songwriter indie rock
                                      'tag_artist'  Sleater-Kinney
                                     'tag_release'  All Hands on the Bad One
                                       'tag_title'  All Hands on the Bad One
                                             'bpm'  99.08
                                    'search_title'  'all':1 'bad':5 'hands':2 'on':3 'one':6 'the':4
                                   'search_artist'  'kinney':2 'sleater':1 'sleaterkinney':3
                                  'search_release'  'all':1 'bad':5 'hands':2 'on':3 'one':6 'the':4
                                     'search_rest'  '00singer':1 '03':13,16 'all':9,11,14,17 'eos':3 'ifs':18 'indie':19 'kinney':8,10 'mbz':4,6 'one':12,15 'rock':20 'sleater':5,7 'songwriter':2
                                    'search_combo'  '00singer':16 '03':28,31 'all':1A,10C,24,26,29,32 'bad':5A,14C 'eos':18 'hands':2A,11C 'ifs':33 'indie':34 'kinney':8B,23,25 'mbz':19,21 'on':3A,12C 'one':6A,15C,27,30 'rock':35 'sleater':7B,20,22 'sleaterkinney':9B 'songwriter':17 'the':4A,13C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'riot grrrl', 'female vocalists', 'indie rock', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621697545.3638155  (2021-05-22 17:32:25)
                             'size'  2807284