======================== unified (from filesystem) ========================
                                         'bitrate'  '246.363'
                                        'duration'  '123'
                                          'artist'  'Dave Clarke'
                                     'text_people'  'Tomas Hartl'
                                         'release'  'World Service V2 - Techno'
                                           'title'  'Crocks'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['electronica', 'house', 'dance', 'techno', 'electro', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '111.763'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x00A\x00+\x009\x006\x00+\x002\x00D\x006\x001\x00+\x006\x001\x000\x002\x00+\x007\x00D\x003\x008\x00+\x00A\x001\x007\x007\x00+\x00C\x00F\x00C\x003\x00+\x00F\x003\x00E\x003\x00+\x001\x002\x004\x003\x008\x00+\x001\x005\x00F\x00F\x00E\x00+\x001\x009\x004\x003\x00D\x00+\x001\x00B\x008\x005\x008\x00+\x001\x00F\x000\x007\x00E\x00+\x002\x002\x00A\x00A\x006\x00+\x002\x004\x00A\x00C\x000\x00+\x002\x006\x006\x00D\x00D\x00+\x002\x009\x00D\x001\x00E\x00+\x002\x00D\x00F\x006\x00E\x00+\x003\x001\x003\x00A\x007\x00+\x003\x003\x003\x00E\x008\x00+\x003\x006\x004\x003\x00E\x00+\x003\x008\x00C\x002\x004\x00+\x003\x00B\x007\x00C\x00B\x00+\x003\x00E\x00D\x006\x00C\x00+\x004\x001\x004\x002\x00B\x00+\x004\x004\x002\x001\x003\x00+\x004\x006\x006\x008\x00B\x00+\x004\x009\x006\x00B\x005\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'World Service V2 - Techno'
'TBPM' (BPM (beats per minute))                     '111.763'
'TCOM' (Composer)                                   'Tomas Hartl'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Crocks'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Elektralabel'
'TPE2' (Band/orchestra/accompaniment)               'Dave Clarke'
'TPUB' (Publisher)                                  'Resist UK'
'TRCK' (Track number/Position in set)               '4'
'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:WM/Provider'                                  'AMG'
'TXXX:WM/ProviderRating'                            '0'
'TXXX:WM/ProviderStyle'                             'Electronica'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'house', 'dance', 'techno', 'electro', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.00 dB'
'TXXX:replaygain_track_peak'                        '0.705996'

========================== row from database ==========================
                                              'id'  1303183
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dave Clarke/Dave Clarke - World Service 2 MP3/World Service 2 CD2 Techno Mix/04.Crocks.mp3
                                         'working'  None
                                         'bitrate'  246
                                    'duration_sec'  123
                                           'genre'  electronic-th-techno
                                        'filesize'  3813950
                                           'mtime'  1620568914
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MP3 CD2 Mix 04.Crocks electronic th techno
                                      'tag_artist'  Dave Clarke
                                     'tag_release'  World Service V2 - Techno
                                       'tag_title'  Crocks
                                             'bpm'  111.763
                                    'search_title'  'crocks':1
                                   'search_artist'  'clarke':2 'dave':1
                                  'search_release'  'service':2 'techno':4 'v2':3 'world':1
                                     'search_rest'  '00poprockelectronic':1 '04':5 '04crocks':7 'cd2':3 'crocks':6 'electronic':8 'mix':4 'mp3':2 'techno':10 'th':9
                                    'search_combo'  '00poprockelectronic':8 '04':12 '04crocks':14 'cd2':10 'clarke':3B 'crocks':1A,13 'dave':2B 'electronic':15 'mix':11 'mp3':9 'service':5C 'techno':7C,17 'th':16 'v2':6C 'world':4C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'house', 'dance', 'techno', 'electro', 'electronic']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620568914.2400544  (2021-05-09 16:01:54)
                             'size'  3813950