======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '242'
                                          'artist'  'M.C. Sar & the Real Mccoy'
                                     'text_people'  ''
                                         'release'  "Best Ever Top 100 90's"
                                           'title'  "It's on You"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-3']")
                                      'lastfmtags'  "['eurodance', 'dance', '90s', 'german', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '118.775'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Best Ever Top 100 90's"
'TBPM' (BPM (beats per minute))                     '118.775'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'lacadau'
'TIT2' (Title/songname/content description)         "It's on You"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'M.C. Sar & the Real Mccoy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'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:lastfmtags'                                   ['eurodance', 'dance', '90s', 'german', 'female vocalists']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.59 dB'
'TXXX:replaygain_track_peak'                        '0.701122'

========================== row from database ==========================
                                              'id'  1352302
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/43_Its_on_You.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  242
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  9711643
                                           'mtime'  1621696046
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 43_Its_on_You electronic generic or radio unsorted
                                      'tag_artist'  M.C. Sar & the Real Mccoy
                                     'tag_release'  Best Ever Top 100 90's
                                       'tag_title'  It's on You
                                             'bpm'  118.775
                                    'search_title'  'it':1 'its':3 'on':4 's':2 'you':5
                                   'search_artist'  'c':2 'm':1 'mc':3 'mccoy':7 'real':6 'sar':4 'the':5
                                  'search_release'  '100':4 '90':5 '90s':7 'best':1 'ever':2 's':6 'top':3
                                     'search_rest'  '00poprockelectronic':1 '43':3 '90s':2 'electronic':7 'generic':8 'its':4 'on':5 'or':9 'radio':10 'unsorted':11 'you':6
                                    'search_combo'  '00poprockelectronic':20 '100':16C '43':22 '90':17C '90s':19C,21 'best':13C 'c':7B 'electronic':26 'ever':14C 'generic':27 'it':1A 'its':3A,23 'm':6B 'mc':8B 'mccoy':12B 'on':4A,24 'or':28 'radio':29 'real':11B 's':2A,18C 'sar':9B 'the':10B 'top':15C 'unsorted':30 'you':5A,25
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           '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-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['eurodance', 'dance', '90s', 'german', 'female vocalists']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696046.3591602  (2021-05-22 17:07:26)
                             'size'  9711643