======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '206'
                                          'artist'  'No Doubt'
                                     'text_people'  ''
                                         'release'  'Boom Box (disc 2)'
                                           'title'  'Everything In Time (Los Angeles)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['female vocalists', 'alternative', 'ska', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '143.213'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Boom Box (disc 2)'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Everything In Time (Los Angeles)'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'No Doubt'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['female vocalists', 'alternative', 'ska', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.401915'

========================== row from database ==========================
                                              'id'  1297342
                                            'path'  /data/Music/Bulk/00poprockelectronic/No Doubt/Boom Box/07 - Everything in Time (Los Angeles).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  206
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  4969176
                                           'mtime'  1620524716
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  No Doubt
                                     'tag_release'  Boom Box (disc 2)
                                       'tag_title'  Everything In Time (Los Angeles)
                                             'bpm'  143.213
                                    'search_title'  'angeles':6,7 'everything':1 'in':2 'los':4,5 'time':3
                                   'search_artist'  'doubt':2 'no':1
                                  'search_release'  '2':5,6 'boom':1 'box':2 'disc':3,4
                                     'search_rest'  '00poprockelectronic':1 'dancehall':8 'dub':6 'loc':2 'or':5 'reggae':4 'ska':7 'style':3
                                    'search_combo'  '00poprockelectronic':16 '2':14C,15C 'angeles':6A,7A 'boom':10C 'box':11C 'dancehall':23 'disc':12C,13C 'doubt':9B 'dub':21 'everything':1A 'in':2A 'loc':17 'los':4A,5A 'no':8B 'or':20 'reggae':19 'ska':22 'style':18 'time':3A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'alternative', 'ska', 'pop', 'rock']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524716.017423  (2021-05-09 03:45:16)
                             'size'  4969176