======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '295'
                                          'artist'  'Matthias Reiling'
                                     'text_people'  ''
                                         'release'  'Gefällt Mir Nicht Mehr'
                                           'title'  'Warm Down'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-2', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['german', 'house', 'downtempo', 'electronic', 'hip hop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '123.557'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Gefällt Mir Nicht Mehr'
'TBPM' (BPM (beats per minute))                     '123.557'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TIT2' (Title/songname/content description)         'Warm Down'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Matthias Reiling'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['german', 'house', 'downtempo', 'electronic', 'hip hop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+16.93 dB'
'TXXX:replaygain_track_peak'                        '0.074988'

========================== row from database ==========================
                                              'id'  1307005
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/giegling/Matthias Reiling - Gefallt Mir Nicht Mehr [GIEGLING 15]/05 - Warm Down.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  295
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  11720188
                                           'mtime'  1621085223
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats giegling Gefallt [GIEGLING 15] 05 electronic techno minimal or deephouse
                                      'tag_artist'  Matthias Reiling
                                     'tag_release'  Gefällt Mir Nicht Mehr
                                       'tag_title'  Warm Down
                                             'bpm'  123.557
                                    'search_title'  'down':2 'warm':1
                                   'search_artist'  'matthias':1 'reiling':2
                                  'search_release'  'gefallt':1,2 'mehr':5 'mir':3 'nicht':4
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 '15':9,10 'beats':5 'deephouse':15 'electronic':11 'gefallt':7 'giegling':6,8 'harder':4 'house':3 'minimal':13 'or':14 'techno':12
                                    'search_combo'  '00poprockelectronic':10 '00techno':11 '15':18,19 'beats':14 'deephouse':24 'down':2A 'electronic':20 'gefallt':5C,6C,16 'giegling':15,17 'harder':13 'house':12 'matthias':3B 'mehr':9C 'minimal':22 'mir':7C 'nicht':8C 'or':23 'reiling':4B 'techno':21 'warm':1A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', 'house', 'downtempo', 'electronic', 'hip hop']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085223.4401658  (2021-05-15 15:27:03)
                             'size'  11720188