======================== unified (from filesystem) ========================
                                         'bitrate'  '258.651'
                                        'duration'  '291'
                                          'artist'  'Tom Waits'
                                     'text_people'  'Tom Waits & Kathleen Brennan'
                                         'release'  'Real Gone'
                                           'title'  "How's It Gonna End"
                                           'quals'  ("['Q-JZFKS-2', 'Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-3', "
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 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']"
                                     'discogstags'  "['rock', 'blues rock', 'lo-fi', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '16'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos;set-pl-sced'
                                             'bpm'  '109.883'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000000F3 000001A3 0000335E'
'COMM:iTunNORM:eng'                                 (' 000000F3 000001A3 0000335E 00004074 0002B7EB 00029DB1 00007A2E 000078E2 '
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'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B58 0000000000C46698 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '16+D7C77C6D46A88903E3CE7E0860556652+4579005'
'TALB' (Album/Movie/Show title)                     'Real Gone'
'TBPM' (BPM (beats per minute))                     '109.883'
'TCOM' (Composer)                                   'Tom Waits & Kathleen Brennan'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-eos', 'set-pl-sced']
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'iTunes v6.0.5'
'TIT2' (Title/songname/content description)         "How's It Gonna End"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TPE2' (Band/orchestra/accompaniment)               'Tom Waits'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'blues rock', 'lo-fi', 'experimental']
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.38 dB'
'TXXX:replaygain_track_peak'                        '0.802124'

========================== row from database ==========================
                                              'id'  1506436
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Tom Waits/[2004] Real Gone/06 How_s It Gonna End.mp3
                                         'working'  None
                                         'bitrate'  258
                                    'duration_sec'  291
                                           'genre'  ifs-songwriter-eos;set-pl-sced
                                        'filesize'  9526176
                                           'mtime'  1639508261
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos [2004] 06 How_s ifs songwriter eos;set pl sced
                                      'tag_artist'  Tom Waits
                                     'tag_release'  Real Gone
                                       'tag_title'  How's It Gonna End
                                             'bpm'  109.883
                                    'search_title'  'end':6 'gonna':5 'how':1 'hows':3 'it':4 's':2
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'gone':2 'real':1
                                     'search_rest'  '00singer':1 '00songwriter':4 '2004':5,6 'eos':3,10,12 'how':7 'ifs':9 'pl':14 's':8 'sced':15 'set':11,13 'songwriter':2
                                    'search_combo'  '00singer':11 '00songwriter':14 '2004':15,16 'end':6A 'eos':13,20,22 'gone':10C 'gonna':5A 'how':1A,17 'hows':3A 'ifs':19 'it':4A 'pl':24 'real':9C 's':2A,18 'sced':25 'set':21,23 'songwriter':12 'tom':7B 'waits':8B
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
                                        'tag_date'  2004
                                     'discogstags'  ['rock', 'blues rock', 'lo-fi', 'experimental']

============================== file details ==============================
                                           'mtime'  1639508260.5647054  (2021-12-14 19:57:40)
                             'size'  9526176