======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '198'
                                          'artist'  'Shawn Mullins'
                                     'text_people'  ''
                                         'release'  'GrandPassion & Elton John'
                                           'title'  'Border Song (Elton John)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-2', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['90s', 'pop', 'rock', 'alternative', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-unsorted;set-cover or covered'
                                             'bpm'  '130.734'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'GrandPassion & Elton John'
'TBPM' (BPM (beats per minute))                     '130.734'
'TCON' (Content type, a.k.a. Genre)                 ['rock-unsorted', 'set-cover or covered']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Border Song (Elton John)'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Shawn Mullins'
'TPE2' (Band/orchestra/accompaniment)               'Shawn Mullins'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['90s', 'pop', 'rock', 'alternative', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.25 dB'
'TXXX:replaygain_track_peak'                        '0.408130'

========================== row from database ==========================
                                              'id'  1333967
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Elton John Covers/Shawn Mullins - Border Song (Elton John).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  198
                                           'genre'  rock-unsorted;set-cover or covered
                                        'filesize'  4821493
                                           'mtime'  1676053008
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA Covers rock unsorted;set cover covered
                                      'tag_artist'  Shawn Mullins
                                     'tag_release'  GrandPassion & Elton John
                                       'tag_title'  Border Song (Elton John)
                                             'bpm'  130.734
                                    'search_title'  'border':1 'elton':3,4 'john':5,6 'song':2
                                   'search_artist'  'mullins':2 'shawn':1
                                  'search_release'  'elton':2 'grand':4 'grandpassion':1 'john':3 'passion':5
                                     'search_rest'  '00poprockelectronic':1 'cover':9 'covered':10 'covers':3 'rock':4 'set':6,8 'unsorted':5,7 'va':2
                                    'search_combo'  '00poprockelectronic':14 'border':1A 'cover':22 'covered':23 'covers':16 'elton':3A,4A,10C 'grand':12C 'grandpassion':9C 'john':5A,6A,11C 'mullins':8B 'passion':13C 'rock':17 'set':19,21 'shawn':7B 'song':2A 'unsorted':18,20 'va':15
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-2', 'Q-PIANO-2']
                                      'lastfmtags'  ['90s', 'pop', 'rock', 'alternative', 'folk', 'singer songwriter']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676053007.7719245  (2023-02-10 19:16:47)
                             'size'  4821493