======================== unified (from filesystem) ========================
                                         'bitrate'  '238.385'
                                        'duration'  '216'
                                          'artist'  'Bang Bang Bazooka'
                                     'text_people'  ''
                                         'release'  'Hell Yeah!'
                                           'title'  'werewolf on the prowl'
                                           '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-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock n roll', 'psychobilly', 'rockabilly', 'dutch']"
                                     'discogstags'  "['psychobilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '119.617'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Hell Yeah!'
'TBPM' (BPM (beats per minute))                     '119.617'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'werewolf on the prowl'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bang Bang Bazooka'
'TRCK' (Track number/Position in set)               '07'
'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:discogstags'                                  ['psychobilly', 'rock']
'TXXX:lastfmtags'                                   ['rock n roll', 'psychobilly', 'rockabilly', 'dutch']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.01 dB'
'TXXX:replaygain_track_peak'                        '0.352664'

========================== row from database ==========================
                                              'id'  1305279
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/Bang Bang Bazooka/hell yeah!/07 werewolf on the prowl.mp3
                                         'working'  None
                                         'bitrate'  238
                                    'duration_sec'  216
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  6454654
                                           'mtime'  1620526067
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica hell yeah! 07 rock rockabilly or psychobilly
                                      'tag_artist'  Bang Bang Bazooka
                                     'tag_release'  Hell Yeah!
                                       'tag_title'  werewolf on the prowl
                                             'bpm'  119.617
                                    'search_title'  'on':2 'prowl':4 'the':3 'werewolf':1
                                   'search_artist'  'bang':1 'bazooka':2
                                  'search_release'  'hell':1 'yeah':2
                                     'search_rest'  '00poprockelectronic':1 'hell':3 'musica':2 'or':7 'psychobilly':8 'rock':5 'rockabilly':6 'yeah':4
                                    'search_combo'  '00poprockelectronic':9 'bang':5B 'bazooka':6B 'hell':7C,11 'musica':10 'on':2A 'or':15 'prowl':4A 'psychobilly':16 'rock':13 'rockabilly':14 'the':3A 'werewolf':1A 'yeah':8C,12
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock n roll', 'psychobilly', 'rockabilly', 'dutch']
                                        'tag_date'  1995
                                     'discogstags'  ['psychobilly', 'rock']

============================== file details ==============================
                                           'mtime'  1620526067.398621  (2021-05-09 04:07:47)
                             'size'  6454654