======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '304'
                                          'artist'  'Enrique Iglesias'
                                     'text_people'  'dirrtyremixes.com / rmxlvrs.com'
                                         'release'  "I'm a Freak - Official Remixes"
                                           'title'  "I'm A Freak (Feilden Workout Dub)"
                                           '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-3', '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'  "['dance', 'latin', 'latin pop', 'pop', 'spanish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '128.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "I'm a Freak - Official Remixes"
'TBPM' (BPM (beats per minute))                     '128.0'
'TCOM' (Composer)                                   'dirrtyremixes.com / rmxlvrs.com'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TIT2' (Title/songname/content description)         "I'm A Freak (Feilden Workout Dub)"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Enrique Iglesias'
'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:Tagging time'                                 '2014-03-29T20:22:42'
'TXXX:lastfmtags'                                   ['dance', 'latin', 'latin pop', 'pop', 'spanish']
'TXXX:q-bass'                                       '3'
'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'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.13 dB'
'TXXX:replaygain_track_peak'                        '0.852984'

========================== row from database ==========================
                                              'id'  1512000
                                            'path'  /data/Music/Bulk/00poprockelectronic/deep house/Enrique Iglesias - I_m A Freak (Feilden Workout Dub).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  304
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  12188815
                                           'mtime'  1621085293
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic deep house I_m electronic th techno minimal deephouse
                                      'tag_artist'  Enrique Iglesias
                                     'tag_release'  I'm a Freak - Official Remixes
                                       'tag_title'  I'm A Freak (Feilden Workout Dub)
                                             'bpm'  128.0
                                    'search_title'  'a':4 'dub':9,10 'feilden':6,7 'freak':5 'i':1 'im':3 'm':2 'workout':8
                                   'search_artist'  'enrique':1 'iglesias':2
                                  'search_release'  'a':4 'freak':5 'i':1 'im':3 'm':2 'official':6 'remixes':7
                                     'search_rest'  '00poprockelectronic':1 'deep':2 'deephouse':10 'electronic':6 'house':3 'i':4 'm':5 'minimal':9 'techno':8 'th':7
                                    'search_combo'  '00poprockelectronic':20 'a':4A,16C 'deep':21 'deephouse':29 'dub':9A,10A 'electronic':25 'enrique':11B 'feilden':6A,7A 'freak':5A,17C 'house':22 'i':1A,13C,23 'iglesias':12B 'im':3A,15C 'm':2A,14C,24 'minimal':28 'official':18C 'remixes':19C 'techno':27 'th':26 'workout':8A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', '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-3', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'latin', 'latin pop', 'pop', 'spanish']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621085293.2590673  (2021-05-15 15:28:13)
                             'size'  12188815