======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '161'
                                          'artist'  'The Skatalites'
                                     'text_people'  ''
                                         'release'  'Kings of Ska'
                                           'title'  'Alley Cat'
                                           'quals'  ("['Q-HAP-3', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-SYN-2', "
 "'Q-OLDST-2', 'Q-PLAY-3', 'Q-CHART-2', 'Q-MIXBEAT-2', 'q-bass-4', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-JZFKS-3', "
 "'Q-LOCALNESS-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub'
                                             'bpm'  '119'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Kings of Ska'
'TBPM' (BPM (beats per minute))                     '119'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Alley Cat'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Skatalities'
'TPE2' (Band/orchestra/accompaniment)               'The Skatalites'
'TPOS' (Part of a set)                              '1'
'TPUB' (Publisher)                                  'Justice'
'TRCK' (Track number/Position in set)               '1'
'TSRC' (ISRC (international standard recording code))  'QM4TX1766132'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-7.43 dB'
'TXXX:replaygain_track_peak'                        '0.983326'

========================== row from database ==========================
                                              'id'  1535382
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/The Skatalites - Kings of Ska/1 - Alley Cat.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  161
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub
                                        'filesize'  7393205
                                           'mtime'  1636914469
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub 1 loc style reggae or dub or ska or dancehall dub
                                      'tag_artist'  The Skatalites
                                     'tag_release'  Kings of Ska
                                       'tag_title'  Alley Cat
                                             'bpm'  119.0
                                    'search_title'  'alley':1 'cat':2
                                   'search_artist'  'skatalites':2 'the':1
                                  'search_release'  'kings':1 'of':2 'ska':3
                                     'search_rest'  '00reggae':1 '1':3 'dancehall':9 'dub':2 'loc':4 'or':7 'reggae':6 'ska':8 'style':5
                                    'search_combo'  '00reggae':8 '1':10 'alley':1A 'cat':2A 'dancehall':16 'dub':9 'kings':5C 'loc':11 'of':6C 'or':14 'reggae':13 'ska':7C,15 'skatalites':4B 'style':12 'the':3B
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-4', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636914468.896041  (2021-11-14 19:27:48)
                             'size'  7393205