======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '144'
                                          'artist'  'Strawbs'
                                     'text_people'  ''
                                         'release'  'Halcyon Days'
                                           'title'  'The River'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'fun', 'strings organs rubber wind', 'energetic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '17'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;rock-cppex-classic;set-pl-progspace'
                                             'bpm'  '140.823'
                                             'key'  '9A'
                                        'acoustid'  '3c450594-457b-4492-a199-452617d9f86d'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Halcyon Days'
'TBPM' (BPM (beats per minute))                     '140.823'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'rock-cppex-classic', 'set-pl-progspace']
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'The River'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Strawbs'
'TPE2' (Band/orchestra/accompaniment)               'Strawbs'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'A&M Records'
'TRCK' (Track number/Position in set)               '15/17'
'TSO2'                                              'Strawbs'
'TSOP' (Performer sort order)                       'Strawbs'
'TSRC' (ISRC (international standard recording code))  'USAM17300044'
'TXXX:ASIN'                                         'B000006TKB'
'TXXX:Acoustid Id'                                  '3c450594-457b-4492-a199-452617d9f86d'
'TXXX:Artists'                                      'Strawbs'
'TXXX:BARCODE'                                      '731454066228'
'TXXX:CATALOGNUMBER'                                '540 662-2'
'TXXX:MusicBrainz Album Artist Id'                  'b0444851-901f-4ab7-a725-ed045ec2be09'
'TXXX:MusicBrainz Album Id'                         '9d30623d-14ad-4a51-8d87-ab1bcdb11f6e'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'b0444851-901f-4ab7-a725-ed045ec2be09'
'TXXX:MusicBrainz Release Group Id'                 '0a768234-0868-30f8-827c-56320dde48b5'
'TXXX:MusicBrainz Release Track Id'                 '12205c5f-c12c-3ec9-b2bc-38b5b90dc82a'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['folk rock', 'fun', 'strings organs rubber wind', 'energetic', 'rock']
'TXXX:originalyear'                                 '1997'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.07 dB'
'TXXX:replaygain_track_peak'                        '0.563240'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'dadce312-3b63-4815-84b3-63204223f4b9')

========================== row from database ==========================
                                              'id'  1411607
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Strawbs/Halcyon Days (UK) Disc 2/15 The River.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  144
                                           'genre'  rock-cppex-progressive;rock-cppex-classic;set-pl-progspace
                                        'filesize'  2960346
                                           'mtime'  1636038897
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (UK) Disc 2 15 rock cppex progressive;rock cppex classic;set pl progspace
                                      'tag_artist'  Strawbs
                                     'tag_release'  Halcyon Days
                                       'tag_title'  The River
                                             'bpm'  140.823
                                    'search_title'  'river':2 'the':1
                                   'search_artist'  'strawbs':1
                                  'search_release'  'days':2 'halcyon':1
                                     'search_rest'  '2':5 'classic':12,14 'classicprogpsy':1 'cppex':7 'disc':4 'pl':16 'progressive':8,10 'progspace':17 'rock':6,9,11 'set':13,15 'uk':2,3
                                    'search_combo'  '2':10 'classic':17,19 'classicprogpsy':6 'cppex':12 'days':5C 'disc':9 'halcyon':4C 'pl':21 'progressive':13,15 'progspace':22 'river':2A 'rock':11,14,16 'set':18,20 'strawbs':3B 'the':1A 'uk':7,8
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['folk rock', 'fun', 'strings organs rubber wind', 'energetic', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038896.66388  (2021-11-04 16:14:56)
                             'size'  2960346