======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '156'
                                          'artist'  'The Underground Youth'
                                     'text_people'  ''
                                         'release'  'Mademoiselle'
                                           'title'  "Olya's Song"
                                           'quals'  ("['Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'garage rock', 'psychedelic rock', 'neo psychedelia', 'psychedelic']"
                                     'discogstags'  "['psychedelic rock', 'shoegaze', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage'
                                             'bpm'  '138.702'
                                             'key'  '1B'
                                        'acoustid'  '4d09a502-442f-4153-87b2-88e4273e4459'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Mademoiselle'
'TBPM' (BPM (beats per minute))                     '138.702'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-garage'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010-03-22'
'TIT2' (Title/songname/content description)         "Olya's Song"
'TKEY' (Initial key)                                '1B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'The Underground Youth'
'TPE2' (Band/orchestra/accompaniment)               'The Underground Youth'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/11'
'TSO2'                                              'Underground Youth, The'
'TSOP' (Performer sort order)                       'Underground Youth, The'
'TSSE' (Software/Hardware and settings used for encoding)  'eRightSoft(C)'
'TXXX:Acoustid Id'                                  '4d09a502-442f-4153-87b2-88e4273e4459'
'TXXX:MusicBrainz Album Artist Id'                  '66663ccb-5cba-4ecf-8041-723789e9c06a'
'TXXX:MusicBrainz Album Id'                         '32b62dc6-9f7e-47f5-85d7-8246b2d8811b'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '66663ccb-5cba-4ecf-8041-723789e9c06a'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:compatible_brands'                            'M4A mp42isom'
'TXXX:discogstags'                                  ['psychedelic rock', 'shoegaze', 'rock']
'TXXX:gapless_playback'                             '0'
'TXXX:lastfmtags'                                   ['indie', 'garage rock', 'psychedelic rock', 'neo psychedelia', 'psychedelic']
'TXXX:major_brand'                                  'M4A '
'TXXX:minor_version'                                '0'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.606656'

========================== row from database ==========================
                                              'id'  1508228
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/the underground youth - mademoiselle (2010)/04 - olya_s song.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  156
                                           'genre'  rock-gr-garage
                                        'filesize'  6330907
                                           'mtime'  1620388626
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner the underground youth mademoiselle (2010) 04 olya_s song rock garage
                                      'tag_artist'  The Underground Youth
                                     'tag_release'  Mademoiselle
                                       'tag_title'  Olya's Song
                                             'bpm'  138.702
                                    'search_title'  'olya':1 'olyas':3 's':2 'song':4
                                   'search_artist'  'the':1 'underground':2 'youth':3
                                  'search_release'  'mademoiselle':1
                                     'search_rest'  '2010':9,10 'garage':2 'mademoiselle':8 'olya':11 'punk':1 'rock':14 's':12 'song':13 'stoner':4 'surf':3 'the':5 'underground':6 'youth':7
                                    'search_combo'  '2010':17,18 'garage':10 'mademoiselle':8C,16 'olya':1A,19 'olyas':3A 'punk':9 'rock':22 's':2A,20 'song':4A,21 'stoner':12 'surf':11 'the':5B,13 'underground':6B,14 'youth':7B,15
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'garage rock', 'psychedelic rock', 'neo psychedelia', 'psychedelic']
                                        'tag_date'  2010
                                     'discogstags'  ['psychedelic rock', 'shoegaze', 'rock']

============================== file details ==============================
                                           'mtime'  1620388625.9124236  (2021-05-07 13:57:05)
                             'size'  6330907