======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '257'
                                          'artist'  'Amy Winehouse'
                                     'text_people'  ''
                                         'release'  'Back to Black'
                                           'title'  "You Know I'm No Good"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'female vocalists', 'soul', 'british', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '11'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-jazz'
                                             'bpm'  '103.9'
                                             'key'  '8A'
                                        'acoustid'  'ea46f36d-455a-4393-90df-fa64c2be51f9'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Back to Black'
'TBPM' (BPM (beats per minute))                     '103.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-jazz'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-10-30'
'TIT2' (Title/songname/content description)         "You Know I'm No Good"
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'Enhanced CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Amy Winehouse'
'TPE2' (Band/orchestra/accompaniment)               'Amy Winehouse'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Universal Records'
'TRCK' (Track number/Position in set)               '2/11'
'TSO2'                                              'Winehouse, Amy'
'TSOP' (Performer sort order)                       'Winehouse, Amy'
'TSRC' (ISRC (international standard recording code))  'GBUM70603488'
'TXXX:ASIN'                                         'B000J3FC0Q'
'TXXX:Acoustid Id'                                  'ea46f36d-455a-4393-90df-fa64c2be51f9'
'TXXX:BARCODE'                                      '602517130418'
'TXXX:CATALOGNUMBER'                                '171 304 1'
'TXXX:MusicBrainz Album Artist Id'                  'dfe9a7c4-8cf2-47f4-9dcb-d233c2b86ec3'
'TXXX:MusicBrainz Album Id'                         'bef386f1-3b81-461a-85c6-f97a2e61ac9e'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'dfe9a7c4-8cf2-47f4-9dcb-d233c2b86ec3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['jazz', 'female vocalists', 'soul', 'british', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.345895'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'222e611f-2e4b-4569-80a4-0a38402f0c63')

========================== row from database ==========================
                                              'id'  1500128
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Amy Winehouse/Back To Black/02  Amy Winehouse - You Know I_m No Good.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  257
                                           'genre'  ifs-songwriter-jazz
                                        'filesize'  6177636
                                           'mtime'  1642256047
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos To 02 I_m ifs songwriter jazz
                                      'tag_artist'  Amy Winehouse
                                     'tag_release'  Back to Black
                                       'tag_title'  You Know I'm No Good
                                             'bpm'  103.9
                                    'search_title'  'good':7 'i':3 'im':5 'know':2 'm':4 'no':6 'you':1
                                   'search_artist'  'amy':1 'winehouse':2
                                  'search_release'  'back':1 'black':3 'to':2
                                     'search_rest'  '00singer':1 'eos':3 'i':5 'ifs':7 'jazz':8 'm':6 'songwriter':2 'to':4
                                    'search_combo'  '00singer':13 'amy':8B 'back':10C 'black':12C 'eos':15 'good':7A 'i':3A,17 'ifs':19 'im':5A 'jazz':20 'know':2A 'm':4A,18 'no':6A 'songwriter':14 'to':11C,16 'winehouse':9B 'you':1A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-JZFKS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['jazz', 'female vocalists', 'soul', 'british', 'singer songwriter']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256046.9517057  (2022-01-15 15:14:06)
                             'size'  6177636