======================== unified (from filesystem) ========================
                                         'bitrate'  '122.681'
                                        'duration'  '191'
                                          'artist'  'Zombina & The Skeletones'
                                     'text_people'  ''
                                         'release'  'Chainsaw for Christmas [EP]'
                                           'title'  'A Chainsaw For Christmas'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['horror punk', 'psychobilly', 'deathrock', 'punk', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly;set-th-christmas'
                                             'bpm'  '137.852'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Chainsaw for Christmas [EP]'
'TBPM' (BPM (beats per minute))                     '137.852'
'TCON' (Content type, a.k.a. Genre)                 ['rock-rockabilly or psychobilly', 'set-th-christmas']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'A Chainsaw For Christmas'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Zombina & The Skeletones'
'TRCK' (Track number/Position in set)               '4'
'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:lastfmtags'                                   ['horror punk', 'psychobilly', 'deathrock', 'punk', 'female vocalists']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                        '+0.09 dB'
'TXXX:replaygain_track_peak'                        '0.396581'

========================== row from database ==========================
                                              'id'  168721
                                            'path'  /data/Music/Bulk/00dwimp/Zombina & The Skeletones/A chainsaw for christmas.mp3
                                         'working'  None
                                         'bitrate'  122
                                    'duration_sec'  191
                                           'genre'  rock-rockabilly or psychobilly;set-th-christmas
                                        'filesize'  2933187
                                           'mtime'  1620525219
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp chainsaw christmas rock rockabilly psychobilly;set th christmas
                                      'tag_artist'  Zombina & The Skeletones
                                     'tag_release'  Chainsaw for Christmas [EP]
                                       'tag_title'  A Chainsaw For Christmas
                                             'bpm'  137.852
                                    'search_title'  'a':1 'chainsaw':2 'christmas':4 'for':3
                                   'search_artist'  'skeletones':3 'the':2 'zombina':1
                                  'search_release'  'chainsaw':1 'christmas':3 'ep':4,5 'for':2
                                     'search_rest'  '00dwimp':1 'chainsaw':2 'christmas':3 'psychobilly':6,8 'rock':4 'rockabilly':5 'set':7,9 'th':10
                                    'search_combo'  '00dwimp':13 'a':1A 'chainsaw':2A,8C,14 'christmas':4A,10C,15 'ep':11C,12C 'for':3A,9C 'psychobilly':18,20 'rock':16 'rockabilly':17 'set':19,21 'skeletones':7B 'th':22 'the':6B 'zombina':5B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  4A
                                           '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-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['horror punk', 'psychobilly', 'deathrock', 'punk', 'female vocalists']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525219.112749  (2021-05-09 03:53:39)
                             'size'  2933187