======================== unified (from filesystem) ========================
                                         'bitrate'  '125.199'
                                        'duration'  '164'
                                          'artist'  'Preservation Hall Jazz Band'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Down by the riverside'
                                           'quals'  ("['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-3', 'Q-CHART-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-2', 'q-vocals-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz'
                                             'bpm'  '97.8'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '97.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Down by the riverside'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Preservation Hall Jazz Band'
'TPE2' (Band/orchestra/accompaniment)               'Preservation Hall Jazz Band'
'TRCK' (Track number/Position in set)               '03'
'TXXX:MusicMagic Data'                              'AgEAShv+pNGhUZtJgce6fYABgAGGB4OeGZurm0Ucg+nXt4ABgvMpKbcvtmrM2I+vgAGAAdpbLCX+77XpgAHB4xID0Iqy+LwEgAKAAZOHneGgsoEgD2865JqogQKC7QSgopAfSIGu3y6Q1IgNE4O5oo4Q5QOI7IVBjDK7GscDzhak1oAKq1gNktzktjKhgYOlgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.47 dB'
'TXXX:replaygain_track_peak'                        '0.599384'

========================== row from database ==========================
                                              'id'  1495556
                                            'path'  /data/Music/Other/Pa/Jazz/Preservation Hall JB/Down by the riverside.mp3
                                         'working'  None
                                         'bitrate'  125
                                    'duration_sec'  164
                                           'genre'  prerock-jb-jazz
                                        'filesize'  2579180
                                           'mtime'  1674606550
                                   'redo_metaread'  0
                                        'rest_str'   Pa JB prerock jb jazz
                                      'tag_artist'  Preservation Hall Jazz Band
                                     'tag_release'  None
                                       'tag_title'  Down by the riverside
                                             'bpm'  97.8
                                    'search_title'  'by':2 'down':1 'riverside':4 'the':3
                                   'search_artist'  'band':4 'hall':2 'jazz':3 'preservation':1
                                  'search_release'  
                                     'search_rest'  'jazz':4 'jb':2 'pa':1 'prerock':3
                                    'search_combo'  'band':8B 'by':2A 'down':1A 'hall':6B 'jazz':7B,12 'jb':10 'pa':9 'prerock':11 'preservation':5B 'riverside':4A 'the':3A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-3', 'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-2', 'q-vocals-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1674606549.8986979  (2023-01-25 01:29:09)
                             'size'  2579180