======================== unified (from filesystem) ========================
                                         'bitrate'  '320.002'
                                        'duration'  '416'
                                          'artist'  'Wolfgang Voigt'
                                     'text_people'  ''
                                         'release'  'Clean'
                                           'title'  'Nachschub (Michael Mayer Remix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'q-syn-4', 'q-bass-4', 'q-busy-2', 'q-grit-2', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['minimal', 'ambient', 'techno', 'electronic', 'minimal techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '128'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.FISH (A bright coloured fish) b''
                                     
'COMM::eng'                                         'Reviewed-Incomplete'
'POPM: '                                            POPM(email=' ', rating=153, count=0)
'TALB' (Album/Movie/Show title)                     'Clean'
'TBPM' (BPM (beats per minute))                     '128'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDOR' (Original release time)                      '1999-10-26'
'TDRC' (Recording time)                             '2002'
'TDRL' (Release time)                               '1999-10-26'
'TIT2' (Title/songname/content description)         'Nachschub (Michael Mayer Remix)'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wolfgang Voigt'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPE4' (Interpreted, remixed, or otherwise modified by)  'Michael Mayer'
'TPUB' (Publisher)                                  'Kompakt Extra'
'TRCK' (Track number/Position in set)               '2'
'TSRC' (ISRC (international standard recording code))  'DEU670000061'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimal', 'ambient', 'techno', 'electronic', 'minimal techno']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.06 dB'
'TXXX:replaygain_track_peak'                        '0.576277'
'UFID:http://www.beatport.com'                      UFID(owner='http://www.beatport.com', data=b'track-509295')

========================== row from database ==========================
                                              'id'  1357542
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Music - Clean/02-wolfgang_voigt_-_nachschub_(michael_mayer_remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  416
                                           'genre'  electronic-th-techno
                                        'filesize'  16814700
                                           'mtime'  1620563840
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats Music 02 wolfgang_voigt_ _nachschub_(michael_mayer_remix) electronic th techno
                                      'tag_artist'  Wolfgang Voigt
                                     'tag_release'  Clean
                                       'tag_title'  Nachschub (Michael Mayer Remix)
                                             'bpm'  128.0
                                    'search_title'  'mayer':4 'michael':2,3 'nachschub':1 'remix':5,6
                                   'search_artist'  'voigt':2 'wolfgang':1
                                  'search_release'  'clean':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'beats':5 'electronic':17 'harder':4 'house':3 'mayer':11,15 'michael':10,14 'music':6 'nachschub':9,13 'remix':12,16 'techno':19 'th':18 'voigt':8 'wolfgang':7
                                    'search_combo'  '00poprockelectronic':10 '00techno':11 'beats':14 'clean':9C 'electronic':26 'harder':13 'house':12 'mayer':4A,20,24 'michael':2A,3A,19,23 'music':15 'nachschub':1A,18,22 'remix':5A,6A,21,25 'techno':28 'th':27 'voigt':8B,17 'wolfgang':7B,16
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal', 'ambient', 'techno', 'electronic', 'minimal techno']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620563839.8744767  (2021-05-09 14:37:19)
                             'size'  16814700