======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '226'
                                          'artist'  'Cristian Varela'
                                     'text_people'  ''
                                         'release'  'Techno Energy 12'
                                           'title'  'Pains'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'Q-GRIT-3', 'q-bass-2', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-1', 'Q-SYN-4', 'Q-BUSY-3', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-MIXBEAT-4']")
                                      'lastfmtags'  "['techno', 'electronic', 'minimal techno', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '22'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '140.1'
                                             'key'  '6A'
                                        'acoustid'  '3517123f-3f29-4a36-aeab-5540d1e7dee1'
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '5210CA16'
'TALB' (Album/Movie/Show title)                     'Techno Energy 12'
'TBPM' (BPM (beats per minute))                     '140.1'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Pains'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Cristian Varela'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Nextera'
'TRCK' (Track number/Position in set)               '15/22'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Varela, Cristian'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.81.02, LAME dll 3.91, 128 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Acoustid Id'                                  '3517123f-3f29-4a36-aeab-5540d1e7dee1'
'TXXX:Artists'                                      'Cristian Varela'
'TXXX:CATALOGNUMBER'                                'ERA 2023-2'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '6ad5b73d-7ae0-4785-afac-777b7cf89121'
'TXXX:MusicBrainz Album Release Country'            'CZ'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '6309175c-1b29-4b72-9e12-782605946dc5'
'TXXX:MusicBrainz Release Group Id'                 'a30c0dc6-b43b-3633-9b68-9a2be7e92e8d'
'TXXX:MusicBrainz Release Track Id'                 '12d6d283-c59b-3e87-8390-ca5998fbbd46'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['techno', 'electronic', 'minimal techno', 'minimal']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.50 dB'
'TXXX:replaygain_track_peak'                        '0.479216'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd8a33e30-f500-49d6-aeb0-7a5632d4122d')

========================== row from database ==========================
                                              'id'  1484143
                                            'path'  /data/Music/Bulk/00poprockelectronic/techno energy # 12 - traxster (2001)/15 - cristian varela - pains.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  226
                                           'genre'  electronic-th-techno
                                        'filesize'  3628194
                                           'mtime'  1620573871
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic techno energy # traxster (2001) 15 cristian varela pains electronic th techno
                                      'tag_artist'  Cristian Varela
                                     'tag_release'  Techno Energy 12
                                       'tag_title'  Pains
                                             'bpm'  140.1
                                    'search_title'  'pains':1
                                   'search_artist'  'cristian':1 'varela':2
                                  'search_release'  'energy':2 'techno':1
                                     'search_rest'  '00poprockelectronic':1 '2001':5,6 'cristian':7 'electronic':10 'energy':3 'pains':9 'techno':2 'th':11 'traxster':4 'varela':8
                                    'search_combo'  '00poprockelectronic':6 '2001':10,11 'cristian':2B,12 'electronic':15 'energy':5C,8 'pains':1A,14 'techno':4C,7 'th':16 'traxster':9 'varela':3B,13
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-4', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-4', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-2']
                                      'lastfmtags'  ['techno', 'electronic', 'minimal techno', 'minimal']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573871.2052014  (2021-05-09 17:24:31)
                             'size'  3628194