======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '318'
                                          'artist'  'Take 6'
                                     'text_people'  ''
                                         'release'  'Live'
                                           'title'  'All Blues (live)'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-3', 'q-busy-1', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-3', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gospel', 'jazz', 'a cappella', 'soul', 'a capella']"
                                     'discogstags'  "['gospel', 'jazz', 'funk / soul', 'blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-a capella'
                                             'bpm'  '95.259'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:À\x16\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xc0\x16\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Live'
'TBPM' (BPM (beats per minute))                     '95.259'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-a capella'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'All Blues (live)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Take 6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['gospel', 'jazz', 'funk / soul', 'blues']
'TXXX:lastfmtags'                                   ['gospel', 'jazz', 'a cappella', 'soul', 'a capella']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.47 dB'
'TXXX:replaygain_track_peak'                        '0.485508'

========================== row from database ==========================
                                              'id'  1339745
                                            'path'  /data/Music/Bulk/00poprockelectronic/Take 6/Take Six - All blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  318
                                           'genre'  ifs-songwriter-a capella
                                        'filesize'  7654741
                                           'mtime'  1638554936
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Six blues ifs songwriter capella
                                      'tag_artist'  Take 6
                                     'tag_release'  Live
                                       'tag_title'  All Blues (live)
                                             'bpm'  95.259
                                    'search_title'  'all':1 'blues':2 'live':3,4
                                   'search_artist'  '6':2 'take':1
                                  'search_release'  'live':1
                                     'search_rest'  '00poprockelectronic':1 'blues':3 'capella':6 'ifs':4 'six':2 'songwriter':5
                                    'search_combo'  '00poprockelectronic':8 '6':6B 'all':1A 'blues':2A,10 'capella':13 'ifs':11 'live':3A,4A,7C 'six':9 'songwriter':12 'take':5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'jazz', 'a cappella', 'soul', 'a capella']
                                        'tag_date'  2000
                                     'discogstags'  ['gospel', 'jazz', 'funk / soul', 'blues']

============================== file details ==============================
                                           'mtime'  1638554935.7798634  (2021-12-03 19:08:55)
                             'size'  7654741