======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '195'
                                          'artist'  'Tucky Buzzard'
                                     'text_people'  ''
                                         'release'  'Warm Slash'
                                           'title'  'Fill You In'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['rock', 'hard rock', 'special', 'british', '70s']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '142.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Warm Slash'
'TBPM' (BPM (beats per minute))                     '142.6'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'Fill You In'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tucky Buzzard'
'TPOS' (Part of a set)                              '1 / 1'
'TRCK' (Track number/Position in set)               '3/9'
'TXXX:AccurateRipDiscID'                            '009-000c8b1c-005f797f-7e098109-3'
'TXXX:AccurateRipResult'                            'AccurateRip: Not in database   [39E873AE]'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['rock', 'hard rock', 'special', 'british', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-5.12 dB'
'TXXX:replaygain_track_peak'                        '1.010067'

========================== row from database ==========================
                                              'id'  1478020
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/tucky buzzard - warm slash (uk,71)/Tucky Buzzard - Warm Slash - 03 - Fill You In.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  195
                                           'genre'  rock-cppex
                                        'filesize'  6274778
                                           'mtime'  1674646352
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy tucky buzzard warm slash (uk,71) 03 rock cppex
                                      'tag_artist'  Tucky Buzzard
                                     'tag_release'  Warm Slash
                                       'tag_title'  Fill You In
                                             'bpm'  142.6
                                    'search_title'  'fill':1 'in':3 'you':2
                                   'search_artist'  'buzzard':2 'tucky':1
                                  'search_release'  'slash':2 'warm':1
                                     'search_rest'  '71':7,9 'buzzard':3 'classicprogpsy':1 'cppex':11 'rock':10 'slash':5 'tucky':2 'uk':6,8 'warm':4
                                    'search_combo'  '71':14,16 'buzzard':5B,10 'classicprogpsy':8 'cppex':18 'fill':1A 'in':3A 'rock':17 'slash':7C,12 'tucky':4B,9 'uk':13,15 'warm':6C,11 'you':2A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', 'Q-CHART-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-MIXBEAT-2']
                                      'lastfmtags'  ['rock', 'hard rock', 'special', 'british', '70s']
                                        'tag_date'  1971
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1674646352.1002955  (2023-01-25 12:32:32)
                             'size'  6274778