======================== unified (from filesystem) ========================
                                         'bitrate'  '233.373'
                                        'duration'  '271'
                                          'artist'  'Motörhead'
                                     'text_people'  'Philip Anthony Campbell'
                                         'release'  'Inferno'
                                           'title'  'In the Black'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['speed metal', 'hard rock', 'metal', 'rock', 'heavy metal']"
                                     'discogstags'  "['rock', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-heavy'
                                             'bpm'  '147'
                                             'key'  '12A'
                                        'acoustid'  '4fd2d1ec-f020-4054-b406-dd1469d6516d'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Inferno'
'TBPM' (BPM (beats per minute))                     '147'
'TCOM' (Composer)                                   'Philip Anthony Campbell'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-heavy'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-06-22'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['background vocals', 'Philip Campbell'], ['harmonica', 'Lemmy Kilmister'], ['membranophone', 'Mikkey Dee'], ['vocals', 'Lemmy Kilmister'], ['electric bass guitar', 'Lemmy Kilmister'], ['guitar', 'Philip Campbell'], ['guitar', 'Lemmy Kilmister']])
'TIT2' (Title/songname/content description)         'In the Black'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Motörhead'
'TPE2' (Band/orchestra/accompaniment)               'Motörhead'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sanctuary Records'
'TRCK' (Track number/Position in set)               '7/12'
'TSO2'                                              'Motörhead'
'TSOP' (Performer sort order)                       'Motörhead'
'TSRC' (ISRC (international standard recording code))  'GBAJE0400493'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:ASIN'                                         'B000294SFW'
'TXXX:Acoustid Id'                                  '4fd2d1ec-f020-4054-b406-dd1469d6516d'
'TXXX:Artists'                                      'Motörhead'
'TXXX:AverageLevel'                                 '8315'
'TXXX:BARCODE'                                      '060768524125'
'TXXX:CATALOGNUMBER'                                '06076-85241-2'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:MusicBrainz Album Artist Id'                  '57961a97-3796-4bf7-9f02-a985a8979ae9'
'TXXX:MusicBrainz Album Id'                         '169c583d-4e30-43ad-90bb-778e131f6c80'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '57961a97-3796-4bf7-9f02-a985a8979ae9'
'TXXX:MusicBrainz Release Group Id'                 '0b4ec2a1-c8fe-4dd0-a0b1-d2926a85be15'
'TXXX:MusicBrainz Release Track Id'                 '16e10b35-a5c3-37e3-b4fd-c415a39e2063'
'TXXX:PeakValue'                                    '32673'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:WM/EncodingTime'                              '764043136'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/Provider'                                  'AMG'
'TXXX:WM/ProviderRating'                            '6'
'TXXX:WM/ProviderStyle'                             'Rock'
'TXXX:WM/UniqueFileIdentifier'                      'AMGa_id=R   695673;AMGp_id=P     4965;AMGt_id=T  7074436'
'TXXX:WM/Year'                                      '2004'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '11.0.5721.5145'
'TXXX:discogstags'                                  ['rock', 'heavy metal']
'TXXX:lastfmtags'                                   ['speed metal', 'hard rock', 'metal', 'rock', 'heavy metal']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.430756'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a4bced01-d728-4f2e-a7fa-c4094dc281ed')

========================== row from database ==========================
                                              'id'  1401351
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Motörhead - Motorhead/Inferno/07 In the Black.wma.mp3
                                         'working'  None
                                         'bitrate'  233
                                    'duration_sec'  271
                                           'genre'  eid-metal-heavy
                                        'filesize'  8014619
                                           'mtime'  1620311090
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Motorhead 07 Black.wma eid metal heavy
                                      'tag_artist'  Motörhead
                                     'tag_release'  Inferno
                                       'tag_title'  In the Black
                                             'bpm'  147.0
                                    'search_title'  'black':3 'in':1 'the':2
                                   'search_artist'  'motorhead':1,2
                                  'search_release'  'inferno':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'black':4 'blackwma':6 'eid':7 'heavy':9 'metal':8 'motorhead':3 'wma':5
                                    'search_combo'  '00dwimp':7 '00metal':8 'black':3A,10 'blackwma':12 'eid':13 'heavy':15 'in':1A 'inferno':6C 'metal':14 'motorhead':4B,5B,9 'the':2A 'wma':11
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['speed metal', 'hard rock', 'metal', 'rock', 'heavy metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620311089.9846976  (2021-05-06 16:24:49)
                             'size'  8014619