======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '226'
                                          'artist'  'Bruce Springsteen'
                                     'text_people'  ''
                                         'release'  'Wrecking Ball'
                                           'title'  'Shackled And Drawn'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'classic rock', 'singer songwriter', 'folk', 'rock']"
                                     'discogstags'  "['rock', 'folk rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '11'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '86.659'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Wrecking Ball'
'TBPM' (BPM (beats per minute))                     '86.659'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Shackled And Drawn'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bruce Springsteen'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/11'
'TSRC' (ISRC (international standard recording code))  'USSM11107317'
'TXXX:DISCTOTAL'                                    '1'
'TXXX:ENCODER'                                      'X Lossless Decoder 20120226'
'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:TRACKTOTAL'                                   '11'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'classic rock']
'TXXX:iTunes_CDDB_1'                                '920C210B+233098+11+150+17696+33938+50891+77867+93517+112100+138313+155481+176534+207888'
'TXXX:lastfmtags'                                   ['80s', 'classic rock', 'singer songwriter', 'folk', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.15 dB'
'TXXX:replaygain_track_peak'                        '0.436881'

========================== row from database ==========================
                                              'id'  1415549
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Bruce Springsteen (2012) Wrecking Ball [320]/03. Bruce Springsteen - Shackled And Drawn.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  226
                                           'genre'  rock-cppex-classic
                                        'filesize'  9047331
                                           'mtime'  1636038683
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (2012) [320] 03. rock cppex classic
                                      'tag_artist'  Bruce Springsteen
                                     'tag_release'  Wrecking Ball
                                       'tag_title'  Shackled And Drawn
                                             'bpm'  86.659
                                    'search_title'  'and':2 'drawn':3 'shackled':1
                                   'search_artist'  'bruce':1 'springsteen':2
                                  'search_release'  'ball':2 'wrecking':1
                                     'search_rest'  '03':6,7 '2012':2,3 '320':4,5 'classic':10 'classicprogpsy':1 'cppex':9 'rock':8
                                    'search_combo'  '03':13,14 '2012':9,10 '320':11,12 'and':2A 'ball':7C 'bruce':4B 'classic':17 'classicprogpsy':8 'cppex':16 'drawn':3A 'rock':15 'shackled':1A 'springsteen':5B 'wrecking':6C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'classic rock', 'singer songwriter', 'folk', 'rock']
                                        'tag_date'  2012
                                     'discogstags'  ['rock', 'folk rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1636038683.3764412  (2021-11-04 16:11:23)
                             'size'  9047331