======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '188'
                                          'artist'  'Biber'
                                     'text_people'  ''
                                         'release'  'Balkanbeats, Volume 2'
                                           'title'  'Gypsy Part One'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['baroque', 'classical', 'balkan', 'early music', 'heinrich ignaz franz von "
 "biber']")
                                     'discogstags'  "['folk, world, & country', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '15'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '114.221'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'Beautiful; Classic'
'COMM:Songs-DB_Custom1:eng'                         '2000s'
'COMM:Songs-DB_Custom2:eng'                         'Beautiful; Classic'
'POPM:'                                             POPM(email='', rating=153, count=0)
'TALB' (Album/Movie/Show title)                     'Balkanbeats, Volume 2'
'TBPM' (BPM (beats per minute))                     '114.221'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TCOP' (Copyright message)                          'MiOd'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-09-07'
'TIT2' (Title/songname/content description)         'Gypsy Part One'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Biber'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Eastblok Music'
'TRCK' (Track number/Position in set)               '7/15'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Biber'
'TXXX:ASIN'                                         'B000ICM148'
'TXXX:BARCODE'                                      '4015698806922'
'TXXX:CATALOGNUMBER'                                'EBM007'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '114,204'
'TXXX:MP3GAIN_UNDO'                                 '+006,+006,N'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '03d95755-7e73-4619-bd33-c70ea345b8c7'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '81c2295c-5886-456b-a891-e7d23d9e0dc9'
'TXXX:MusicIP PUID'                                 '901119d4-c359-ef48-66dc-cb55d3ebe390'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['folk, world, & country', 'pop']
'TXXX:lastfmtags'                                   ['baroque',
 'classical',
 'balkan',
 'early music',
 'heinrich ignaz franz von biber']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.64 dB'
'TXXX:replaygain_track_peak'                        '0.378088'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a07334ab-53c5-4d00-b284-db7c7464bd9c')

========================== row from database ==========================
                                              'id'  922442
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/Balkan Beats/BalkanBeats Vol.2 (2006)/(07) [7Biber] 7Biber.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  188
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  7650050
                                           'mtime'  1620528220
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east Beats BalkanBeats Vol.2 (2006) (07) [7Biber] 7Biber loc style gypsy or balkan or klezmer;mi brass
                                      'tag_artist'  Biber
                                     'tag_release'  Balkanbeats, Volume 2
                                       'tag_title'  Gypsy Part One
                                             'bpm'  114.221
                                    'search_title'  'gypsy':1 'one':3 'part':2
                                   'search_artist'  'biber':1
                                  'search_release'  '2':4 'balkanbeats':1,2 'volume':3
                                     'search_rest'  '00south':1 '07':12,13 '2':8 '2006':10,11 '7biber':14,15 'balkan':20 'balkanbeats':6 'beats':5 'brass':25 'east':4 'europe':2 'gypsy':18 'klezmer':21,23 'loc':16 'mi':22,24 'middle':3 'or':19 'style':17 'vol':7 'vol2':9
                                    'search_combo'  '00south':9 '07':20,21 '2':8C,16 '2006':18,19 '7biber':22,23 'balkan':28 'balkanbeats':5C,6C,14 'beats':13 'biber':4B 'brass':33 'east':12 'europe':10 'gypsy':1A,26 'klezmer':29,31 'loc':24 'mi':30,32 'middle':11 'one':3A 'or':27 'part':2A 'style':25 'vol':15 'vol2':17 'volume':7C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['baroque', 'classical', 'balkan', 'early music', 'heinrich ignaz franz von biber']
                                        'tag_date'  2006
                                     'discogstags'  ['folk, world, & country', 'pop']

============================== file details ==============================
                                           'mtime'  1620528220.2352142  (2021-05-09 04:43:40)
                             'size'  7650050