======================== unified (from filesystem) ========================
                                         'bitrate'  '223.563'
                                        'duration'  '227'
                                          'artist'  'Shapeshifters'
                                     'text_people'  ''
                                         'release'  "Now That's What I Call Music! 60"
                                           'title'  'Back to Basics'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'house', 'electronica', 'british', 'club', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '43'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '124.087'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     "Now That's What I Call Music! 60"
'TBPM' (BPM (beats per minute))                     '124.087'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '2005-03-21'
'TIT2' (Title/songname/content description)         'Back to Basics'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shapeshifters'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'NOW'
'TRCK' (Track number/Position in set)               '17/43'
'TSOP' (Performer sort order)                       'Shapeshifters'
'TSRC' (ISRC (international standard recording code))  'GBGYY0400023'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:ASIN'                                         'B0007PL84K'
'TXXX:BARCODE'                                      '0724387344525'
'TXXX:CATALOGNUMBER'                                'CDNOW60'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '1f3bbc3a-5460-45cd-a03f-8bdcfa88dbd0'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '3155cccb-fe72-4ad0-8e5f-2935fb6cd7ee'
'TXXX:MusicIP PUID'                                 '3cde4a6b-717c-5e37-41c4-8bf4fb8dc034'
'TXXX:MusicMagic Data'                              'AgEBp7g6ozyYPsZOg3AUFk1YqWCBY4iWwweUTlO+8xgV0IABgvPDDLSV2TAyRv21hGmAAREehIH6fBQKgVPnN+82F/izHu7x/vaAAZvylpW11IIyFmdITPF3gYyJTMBRlj5WzNhUBXeGRoLzvVe1bNkDCdbygITYgAH6uIWqAhgCH4Ga3lbpaxPdq0jYM+LxgHw='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'house', 'electronica', 'british', 'club', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.479260'

========================== row from database ==========================
                                              'id'  1320849
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/538 Dance Smash 2005-02-05-Shapeshifters-Back to Basics.mp3
                                         'working'  None
                                         'bitrate'  223
                                    'duration_sec'  227
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  6371315
                                           'mtime'  1621696748
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 538 Dance Smash 2005 02 05 electronic generic or radio dance
                                      'tag_artist'  Shapeshifters
                                     'tag_release'  Now That's What I Call Music! 60
                                       'tag_title'  Back to Basics
                                             'bpm'  124.087
                                    'search_title'  'back':1 'basics':3 'to':2
                                   'search_artist'  'shapeshifters':1
                                  'search_release'  '60':9 'call':7 'i':6 'music':8 'now':1 's':3 'that':2 'thats':4 'what':5
                                     'search_rest'  '00poprockelectronic':1 '2005':10 '538':7 'dance':8 'electronic':11 'files':5,6 'generic':12 'loose':3,4 'or':13 'radio':14 'smash':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':14 '2005':23 '538':20 '60':13C 'back':1A 'basics':3A 'call':11C 'dance':21 'electronic':24 'files':18,19 'generic':25 'i':10C 'loose':16,17 'music':12C 'now':5C 'or':26 'radio':27 's':7C 'shapeshifters':4B 'smash':22 'that':6C 'thats':8C 'to':2A 'unsorted':15 'what':9C
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'house', 'electronica', 'british', 'club', 'electronic']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696747.5329692  (2021-05-22 17:19:07)
                             'size'  6371315