======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '186'
                                          'artist'  'Nick Drake'
                                     'text_people'  'Nick Drake'
                                         'release'  'Pink Moon'
                                           'title'  'Free Ride'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'mellow', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk, world, & country', 'folk rock', 'acoustic', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '120.042'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

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'COMM:ID3v1 Comment:XXX'                            '8B06AE0B'
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'PRIV:WM/WMCollectionID:\x95´G\x85`ãÀH¨\x16qжEä¤'  PRIV(owner='WM/WMCollectionID', data=b'\x95\xb4G\x85`\xe3\xc0H\xa8\x16q\xd0\xb6E\xe4\xa4')
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'TALB' (Album/Movie/Show title)                     'Pink Moon'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCOM' (Composer)                                   'Nick Drake'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'Free Ride'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nick Drake'
'TPE2' (Band/orchestra/accompaniment)               'Nick Drake'
'TPUB' (Publisher)                                  'Divine Recordings'
'TRCK' (Track number/Position in set)               '9'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.81.03, LAME dll 3.92, 192 Kbit/s, Stereo, Normal quality'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk, world, & country', 'folk rock', 'acoustic', 'folk']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'mellow', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.67 dB'
'TXXX:replaygain_track_peak'                        '0.647860'

========================== row from database ==========================
                                              'id'  1322900
                                            'path'  /data/Music/Bulk/00poprockelectronic/Nick Drake/Nick Drake - Pink Moon/[1972] - Pink Moon/pink moon - 09 - nick drake - free ride.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  186
                                           'genre'  ifs-songwriter
                                        'filesize'  4489021
                                           'mtime'  1623435830
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1972] pink moon 09 nick drake free ride ifs songwriter
                                      'tag_artist'  Nick Drake
                                     'tag_release'  Pink Moon
                                       'tag_title'  Free Ride
                                             'bpm'  120.042
                                    'search_title'  'free':1 'ride':2
                                   'search_artist'  'drake':2 'nick':1
                                  'search_release'  'moon':2 'pink':1
                                     'search_rest'  '00poprockelectronic':1 '1972':2,3 'drake':7 'free':8 'ifs':10 'moon':5 'nick':6 'pink':4 'ride':9 'songwriter':11
                                    'search_combo'  '00poprockelectronic':7 '1972':8,9 'drake':4B,13 'free':1A,14 'ifs':16 'moon':6C,11 'nick':3B,12 'pink':5C,10 'ride':2A,15 'songwriter':17
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'mellow', 'folk', 'singer songwriter']
                                        'tag_date'  1971
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock', 'acoustic', 'folk']

============================== file details ==============================
                                           'mtime'  1623435829.9856946  (2021-06-11 20:23:49)
                             'size'  4489021