======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '132'
                                          'artist'  "Swingin' Utters"
                                     'text_people'  ''
                                         'release'  'Ska'
                                           'title'  'Fifteenth and T'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['punk rock', 'street punk', 'punk', 'swingin utters', 'california', 'folk "
 "punk']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-unsorted'
                                             'bpm'  '108.646'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ska'
'TBPM' (BPM (beats per minute))                     '108.646'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-unsorted'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Fifteenth and T'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               "Swingin' Utters"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk rock',
 'street punk',
 'punk',
 'swingin utters',
 'california',
 'folk punk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.364851'

========================== row from database ==========================
                                              'id'  1511991
                                            'path'  /data/Music/Bulk/00poprockelectronic/Hepcat records/Swingin_ Utters - Fifteenth and T - 14.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  132
                                           'genre'  loc-style-reggae or dub or ska or dancehall-unsorted
                                        'filesize'  2121024
                                           'mtime'  1620524530
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Hepcat records Swingin_ 14 loc style reggae or dub or ska or dancehall unsorted
                                      'tag_artist'  Swingin' Utters
                                     'tag_release'  Ska
                                       'tag_title'  Fifteenth and T
                                             'bpm'  108.646
                                    'search_title'  'and':2 'fifteenth':1 't':3
                                   'search_artist'  'swingin':1,2 'utters':3
                                  'search_release'  'ska':1
                                     'search_rest'  '00poprockelectronic':1 'dancehall':11 'dub':9 'hepcat':2 'loc':5 'or':8 'records':3 'reggae':7 'ska':10 'style':6 'swingin':4 'unsorted':12
                                    'search_combo'  '00poprockelectronic':8 'and':2A 'dancehall':18 'dub':16 'fifteenth':1A 'hepcat':9 'loc':12 'or':15 'records':10 'reggae':14 'ska':7C,17 'style':13 'swingin':4B,5B,11 't':3A 'unsorted':19 'utters':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'street punk', 'punk', 'swingin utters', 'california', 'folk punk']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620524530.343709  (2021-05-09 03:42:10)
                             'size'  2121024