======================== unified (from filesystem) ========================
                                         'bitrate'  '200.707'
                                        'duration'  '526'
                                          'artist'  'Len Faki'
                                     'text_people'  ''
                                         'release'  'TBI: the Best in Minimal Techno'
                                           'title'  'My Black Sheep'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', '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']")
                                      'lastfmtags'  "['minimal techno', 'house', 'techno', 'tech house', 'electronic', 'minimal']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '125.0'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'TBI Minimal Techno'
'TALB' (Album/Movie/Show title)                     'TBI: the Best in Minimal Techno'
'TBPM' (BPM (beats per minute))                     '125.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'My Black Sheep'
'TKEY' (Initial key)                                '2B'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Len Faki'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['minimal techno', 'house', 'techno', 'tech house', 'electronic', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.76 dB'
'TXXX:replaygain_track_peak'                        '0.526137'

========================== row from database ==========================
                                              'id'  1317599
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lanig/101_len_faki_-_my_black_sheep.mp3
                                         'working'  None
                                         'bitrate'  200
                                    'duration_sec'  526
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  13205255
                                           'mtime'  1621085254
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Lanig 101_len_faki_ _my_black_sheep electronic techno minimal or deephouse
                                      'tag_artist'  Len Faki
                                     'tag_release'  TBI: the Best in Minimal Techno
                                       'tag_title'  My Black Sheep
                                             'bpm'  125.0
                                    'search_title'  'black':2 'my':1 'sheep':3
                                   'search_artist'  'faki':2 'len':1
                                  'search_release'  'best':4 'in':5 'minimal':6 'tbi':1,2 'techno':7 'the':3
                                     'search_rest'  '00poprockelectronic':1 '101':3 'black':7 'deephouse':13 'electronic':9 'faki':5 'lanig':2 'len':4 'minimal':11 'my':6 'or':12 'sheep':8 'techno':10
                                    'search_combo'  '00poprockelectronic':13 '101':15 'best':9C 'black':2A,19 'deephouse':25 'electronic':21 'faki':5B,17 'in':10C 'lanig':14 'len':4B,16 'minimal':11C,23 'my':1A,18 'or':24 'sheep':3A,20 'tbi':6C,7C 'techno':12C,22 'the':8C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  2B
                                           '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-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'house', 'techno', 'tech house', 'electronic', 'minimal']
                                        'tag_date'  2007
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1621085254.4831808  (2021-05-15 15:27:34)
                             'size'  13205255