======================== unified (from filesystem) ========================
                                         'bitrate'  '134.397'
                                        'duration'  '496'
                                          'artist'  "N'to"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '1825 (Original Mix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-PLAY-3', 'Q-HAP-2', 'Q-SYN-3', 'Q-UNU-2', "
 "'Q-BUSY-2', 'Q-GRIT-2', 'q-bass-3', 'Q-CHART-2', 'Q-OLDST-3', 'q-drums-4', "
 "'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '20140915'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '125.2'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '20140915'
'TIT2' (Title/songname/content description)         '1825 (Original Mix)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               "N'to"
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.20.100'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'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-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:description'                                  'http://www.beatport.com/release/1825-ep/1372717'
'TXXX:purl'                                         'https://www.youtube.com/watch?v=YJGeDzOzOyQ'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-7.04 dB'
'TXXX:replaygain_track_peak'                        '1.218758'

========================== row from database ==========================
                                              'id'  1535384
                                            'path'  /data/Music/Bulk/00poprockelectronic/N'to/1825.mp3
                                         'working'  None
                                         'bitrate'  134
                                    'duration_sec'  496
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  8344393
                                           'mtime'  1636301052
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electronic th techno minimal or deephouse
                                      'tag_artist'  N'to
                                     'tag_release'  None
                                       'tag_title'  1825 (Original Mix)
                                             'bpm'  125.2
                                    'search_title'  '1825':1 'mix':4,5 'original':2,3
                                   'search_artist'  'n':1 'nto':3 'to':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'deephouse':7 'electronic':2 'minimal':5 'or':6 'techno':4 'th':3
                                    'search_combo'  '00poprockelectronic':9 '1825':1A 'deephouse':15 'electronic':10 'minimal':13 'mix':4A,5A 'n':6B 'nto':8B 'or':14 'original':2A,3A 'techno':12 'th':11 'to':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-3', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-3', 'q-other-1', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  20140915
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636301051.7137713  (2021-11-07 17:04:11)
                             'size'  8344393